4cx800

It has an additional grid called the screen. The GU-74b / 4CX800A Svetlana tetrode is used in wide-band non-tunable amplifiers and for single-sideband power amplification in stationary and mobile RF equipment. 4CX250B ceramic vacuum tube. Quick View. 5 KW LPF for 160-6m 1. Its characteristics of low intermodulation distortion make it especially suitable for single sideband service. With the naming conventions of ceramic tubes, we can tell quite a bit about the unit without even looking at the data sheet. C24 is a receiving three-section 400 pF variable air capacitor with two sections permanently in parallel, the third section is added while in 80 meter band, allowing greater impedance matching on this band. 00 shipping. he Svetlana 4CX800A is a high- performance ceramic metal tetrode with a plate dissipation rating of 800 watts with forced air cooling. Because of our tradition of supplying the highest quality tubes, we are proud that our ouput is the very best in the world for upgrade and replacement. Eimac 4CX250R / # T PKL 1335. About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy & Safety How YouTube works Test new features Press Copyright Contact us Creators. Forum: Discussioni: Messaggi: Ultimo Messaggio Discussioni : A. GU-74B NEW tetrode tube NOS same as 4CX800A GU74B tubes. Power amplification is handled by a QRO Tech. W8JI Website. I had a Yeasu 2100F, Heathkit Warrior, and Henry 2K3. Few local results found. 8 to 54 MHz combiner set. It is absolutely important to replace the tubes with a matched pair. These are not cheap, however any reasonable offer would be accepted. Some top of the line RF amplifier manufactures are using Svetlana tubes, like the 4CX800, 4CX1000 and 4CX1600 series tubes. 11-14 What it can do and what it shouldn't do. GU-74B = 4CX800A GU74B TETRODE TUBE SVETLANA NOS GREEN STRIPE 1980`s lot 1pc. Think you won't be fined by FCC? Try this one on for size! Before the Federal Communications Commission Washington, D. The Emtron DX-1d Linear Amplifier is a 750 watt average output power, for the 160m through 10m amateur bands (9 bands), housed in a desk-top cabinet with self-contained power supply and cooling system. Regular price $100 00 $100. html enmeyuyd, Crotchless, pvfd, Kstups, 8-OO. Its characteristics of low intermodulation distortion make it especially suitable for single sideband service. Products Archive - Page 5 of 6 - cheap vacuum tubes prices. Vacum Tube GU-74B / 4CX800 / 4CX800A tetrode NEW NOS x 1pc. Free shipping on many items | Browse your favorite brands | affordable prices. DELTA DPS22 22 Amp 12vdc Compact AC/DC Switching Power Supply Ham CB Radio. Its in great condition. Svetlana 4cx800A / GU74B Set of 2 Tubes (USA seller) Brand-New: $300. GU-74B NOS 4CX800A NOS Tube GU74B with BOX. One Tube 4cx800-Single Tube 4cx800 Vacuum Tube transmitter. linear amplifier hf vhf home made with 4cx800 gu74b gu78b 3cx1200 3cx1200a7 8877 3cx1500 4cx250 4cx15000a gu36b. 1:1 current balun; 1989 LX Coupe II; 1989 Mustang LX Coupe; 1989 Mustang Instrument Cluster. This is a well built rugged amp that easily gets legal limit with about 45 watts drive, with lots of head room. 8 - 6 v on the 5. 4CX350JA EI, 4CX500A, 4X150A-NOS Tube, 4X150A/7034 USA Brand (NOS), 4CX150BNOS-1, 4CX7500A-EI Tube, eimac, 4CX3500A-EI Tube, eimac, 4CX20000D-EI Tube, eimac, 4CX20000B-EI Tube, eimac, 4CX20000A-EI Tube, eimac, 4CX20000C-EI Tube, eimac, 4CX1500B-2 Transmitting Tube, 4CX1500B/8660 Eimac (NOS), 4CX250K Transmitting Tube, 4CX250K / 8245 Eimac, 7580/4CX250R Tube,Transmitting (nos), 4CX1000A-EI -2. PL-519 Philips SET DI 2 VALVOLE New Old Stock. The sockets are new!You bid on two sockets! Dimensions for 182506596280. Matched pair means that they have been selected as two tubes with equal parameters. Wyns (on Dell XPS) Sent: Sunday, 28 June 2020 12:23 a. The EIMAC 3CX800A7 is a compact ceramic/metal, air-cooled, high-mu power triode intended for use as a cathode-driven Class AB 2 or Class B amplifier. Any kind of oil and dirt on the vacuum tube on corrosion on the pins can disrupt the temperature. 160M to 10M amp uses a pair of 4CX800 tubes. html fiddhumbkauc, Myjobspa. Russian Thermistor WTS271 NTS 15K Ohm 20pcs. Note: I have many images of the build in progress- It will take some time for me to get this page into shape= I had been looking for a rugged HF linear amplifier with plenty of headroom. 4-1000; 4-1000A; 4-125A-4D21; 4-125A; 4-250A-5D22; 4-250A; 4-400A-6675; 4-400A; 4-400B; 4-400C. The first commercially made amps using the "new Svetlana 4CX800" were actually using GU74's. The Alpha 8410 utilizes an enhanced version of the RF deck found in the Alpha 99, but instead of the 2 x 4CX800’s that have been increasingly difficult to find, our engineers chose Two reasonably priced 4CX1500Bs. It stands to reason that, if a structure is going to encounter fire, smoke, and extreme heat on a regular basis, then it needs to be built from materials that can stand up to these threats and come out relatively unscathed. The amp went back to the shop for diagnosis and repair, and returned with a new 4CX800 tube late the night before Sweeps SSB! Great service from the folks at Array Solutions. 4CX250B ceramic vacuum tube. Mais pour le GU74 (4CX800) il faut une subtilité supplémentaire. Back in 1904, British scientist John Ambrose Fleming first showed his device to convert an alternating current signal into direct current. Matched pair means that they have been selected as two tubes with equal parameters. It is NOT a 1000w ampthe specs on the tube the 4CX800 say plate dissipation is 800wplug in typical efficiency and that will put it down around 600wto 680wMy LP-100 shows 800w peak and my Bird shows around 600-650w (key dwn) output into Steppir 3 ele yagi. Many common amplifiers, e. The GU-74b / 4CX800A Svetlana tetrode is used in wide-band non-tunable amplifiers and for single-sideband power amplification in stationary and mobile RF equipment. Emtron, firma mica din Australia, produce amplificatoare de putere pentru unde scurte bazate pe tuburile Svetlana, altele decat raspanditul GU74/4CX800. The first commercially made amps using the "new Svetlana 4CX800" were actually using GU74's. For specifications and details, go to ACOM, DXE or HRO. This is a 7-pin socket made of high quality dielectric. GU-74B GU74B/ 4CX800A Tetrode mit Sockel - EUR 88,00. Vacum Tube GU-74B / 4CX800 / 4CX800A tetrode NEW NOS x 1pc. com NOS Gu-74B Vacuum Tetrode Tubes made by Svetlana USSR factory. This amplifier is finally more or less finished. 237 - RADIOAMATEUR MEGAHERTZ Décembre 2002 237 Avant-première Yaesu FT-897 Reportage Le relais de la Rochelle Crédit photo d’Henry KOTOVISKISKI - SMØJHF Débuter rapidement en APRS avec AGWPE, UI-VIEW et TinyTrack Essai matériel Yaesu VX-7R tribande FM Réalisation matériel Boîte à lettres radio M 06179 - 237 - F: 4,42 E Reportage Salon radioamateur Hamexpo 2002 3:HIKQLH=^UYYWX. com NOS Gu-74B Vacuum Tetrode Tubes made by Svetlana USSR factory. The input signal from. Below at left is the SK1A socket; at right is the socket with a GU74B (4CX800) installed. DX Engineering GU74B / 4CX800A Ceramic Power Tetrodes are high-performance ceramic / metal tetrodes with a plate dissipation rating of 800 watts. NOS (New Old Stock) We sell NOS (New Old Stock) GU-74b or 4CX800 tubes used in the Acom 2000A, Acom 1000, Acom 1010. That meant to avoid an enlargement of the original cabinet. Hf Linear Amp Kit. Anode cap fits 4cx800, gu74b $33. 11-14 what it can do and what it shouldn't do. Chzktsvh さん ([email protected] 20554 ) ) In the Matter of File Number: EB-06-AT-057 ) Larry J. This item has been shown 0 times. One Tube 4cx800-Single Tube 4cx800 Vacuum Tube transmitter. Opens image gallery. Tubes are a pair of 4cx800's. doc Page 19: Ac Primary Connections & Amplifier Grounding NOTE: If you intend to operate the amplifier on any of the 90 - 130V settings, the two lower fuses on the rear panel (2 amp) will have to be changed to 5 amp to allow for the increased in-rush current. html fiddhumbkauc, Myjobspa. I have the manual and box. 2d 0h 41m 52s. Benefits: • Worldwide brand name recognition • Over 85 years’ expertise making high quality Power Grid products. PL-8295 has been replaced with GU-78B to increase power. acom2000aはgu84b(4cx800)ですのでalpha87よりは 安価ですがこれだけ短命ですと出費が痛いです。 hl-3k(3cx800a7x2)使用時は球のボケは有りましたが 10年以上大丈夫でした。. TRIODES 25T/3-25A3 Data Sheet (1944)25-T, 25T, 3-25A3 25T Data Sheet (1951)25-T 35T Data Sheet (1935)35-T 35T Data Sheet (1936)35-T 35T Data Sheet (1945)35-T 35TG Data Sheet (1945)35-TG. Tubes and RF Components for sale. That is an Eimac style part number but made by Svetlana I don't think that Eimac ever made such a device. Datasheet search engine for Electronic Components and Semiconductors. Radio Kit Elettronica in archivio, i fascicoli del 2019. radioamatori- free newsgroups + -, Re: Cerco ampli VHF. from Jeff ZL4AI. 2K Ohm 20pcs. The computer screen and keyboard at the center of the console handle logging and other data tasks. 4CX250B ceramic vacuum tube. They all perform well and I recommend any of them. Self tuning threadpool 4683 7152 Make a vagina on a text Candle saying for funeral 2863 Fan m5656 744 After taking. Socket for Russian Tube GU74B / 4CX800 / GU-74B USED | Consumer Electronics, Radio Communication, Ham, Amateur Radio | eBay!. 144 MHz Amplifier Schematic Plate Line Of The 144 MHz Amplifier With GU74b Cavity HV Supply Screen Grid (g2) and Control Grid (g1) Supply Bottom View Front of 144MHz Amplifier 750W Output with 15W Input. Les frais de logistique sans doute!. Crusher Built 4cx800 tube. Matched pair means that they have been selected as two tubes with equal parameters. 4CX800 Datasheet, 4CX800 PDF. performance ceramic-metal tetrode (V1) with plate dissipatio n of 800 W is grid-driven. It is useful at full ratings through 250MHz. 8MHz to 54MHz. com) 2011年 02月 17日 16時 45分 49秒 URL:http://seven. homebrew hf tube amplifier, Jul 04, 2009 · 4 KW HF LINEAR AMPLIFIER with GU-78B by SV8JE. Ordering a matched pair of GU74b / 4CX800. アクセサリ(アマチュア無線 ホビー、カルチャー)の新品・未使用品・中古品なら、ヤフオク!。ヤフオク!は常時約5,000万点以上の商品数を誇る、誰でもかんたんに売り買いが楽しめるサービスです。. Gu-74b Tube Made By Svetlana New Tested Guaranty. It has its original 4CX800 tube that still puts out full power on all bands (I have a tested NOS spare tube available for purchase). com Free Ham Radio Classified Ads from QTH. I read the 4CX800A/GU74B tube is no longer in production. , og det bruger 2 stk 4CX800 også kendt som GU74B. An icon used to represent a menu that can be toggled by interacting with this icon. The input signal from. Checked with the meter – both over 10 µF. Because of our tradition of supplying the highest quality tubes, we are proud that our ouput is the very best in the world for upgrade and replacement. The input signal from. How Vacuum Tubes Work by Eric Barbour - [Inside a Tube] - [Why are Tubes Still Used] - [Using Tubes] The BASICS. Svetlana: 4CW10,000A 8661 : 10,000W. Antennas-for-Receiving-and-Transmitting - Free ebook download as PDF File (. Eimac 4CX250R / # T PKL 1335. But the proof of the pudding is in the eating. Well, that was a big challenge. Multiple articles on Receiving and Transmitting antennas. acom2000aはgu84b(4cx800)ですのでalpha87よりは 安価ですがこれだけ短命ですと出費が痛いです。 hl-3k(3cx800a7x2)使用時は球のボケは有りましたが 10年以上大丈夫でした。. Other wise you should make up a separate rig and fan and run the low voltage for several hours as is done for 4CX800 on the 99A. html enmeyuyd, Crotchless, pvfd, Kstups, 8-OO. Other images. New and used surplus equipment in Consumer Electronics > Radio Communication > Parts & Accessories > Tubes. Cathode voltage swing depends on the grid to cathode voltage required to move the tube through the conduction desired or required. Devices are listed from 100W to 50kW. 09 pF Ua 2 kV ( 4 kV ) Ug2 300 V Ug1 -150 V Ia 0. GU-84b is made for bigger anode dissipation and current. I like to get on after work, late at night, and rag chew on the low bands. GU 74b Acom amplifier tetrode 4CX800/GU74b tube for Acom 2000A, Acom 1000, Acom 1010. From Ukraine. Vacum Tube GU-74B / 4CX800 / 4CX800A tetrode NEW NOS x 1pc. Power amplification is handled by a QRO Tech. I do not own a PGXL, but have owned other solid state HF amps in the past. solif state mrf150 eb104 linear amplifier hf vhf home made with 4cx800 gu74b gu78b 3cx1200 3cx1200a7 8877 3cx1500 4cx250 4cx15000a gu36b. C24 is a receiving three-section 400 pF variable air capacitor with two sections permanently in parallel, the third section is added while in 80 meter band, allowing greater impedance matching on this band. RTTY FSK using Ham Radio Deluxe DM-780. -Le seul hic c ˇest que de l ˇOural à HamRadio il y a un coefficient 3, et de HamRadio à HamExpo ou Marennes il y a encore un coefficient de 2. forum post on differences between the acom 1010 single 4cx800 and acom 1011 two 4cx250b. Pi-L uses an extra inductor or the addition of a 4:1 unun in the tank coil assembly. or Best Offer +C $49. includes a 2 amp power supply Share Share on Facebook. LINEAR AMPLIFIER AMPLIFICATORI LINEARI HOME MADE with 4cx800 gu74b linear amplifier hf vhf home made with 4cx800 gu74b gu78b 3cx1200 8877 4cx250 4cx800 4cx250 linear amplifier hf amplificatori lineari hf home made qro 1001newsgroups. BE AWARE THIS UNIT MUST GO MOTOR FREIGHT!!CAN EASILY COST $200. 160M to 10M amp uses a pair of 4CX800 tubes. O Alpha 8410 utiliza uma versão melhorada do baralho RF encontrado no Alpha 99, mas em vez do 2 x 4CX800 de que têm sido cada vez mais difícil de encontrar , os nossos engenheiros escolheu dois 4CX1000s a preços razoáveis. Gu-74b Tube Made By Svetlana New Tested Guaranty. NOS (New Old Stock) We sell NOS (New Old Stock) GU-74b or 4CX800 tubes used in the Acom 2000A, Acom 1000, Acom 1010. Come menzionato nei commenti alla domanda, molte moderne apparecchiature RF ad alta potenza utilizzano tubi a vuoto. Vacuum Tubes. NEW GU-74B tube SVETLANA TETRODE 4CX800A tube. Listed under the Radio Equipment/HF Amplifiers/Acom 1010 category that is about Acom 1010. Title: RCA 811 tube data sheet Created Date: 11/18/1999 11:54:00 PM. IZ5GDP / HF600. He designed and built alot of the maco tube amps you see still floating around. 'Universal' power and control unit for almost any tetrode PA. Regular price $100 00 $100. 4CX250B ceramic vacuum tube. 2) РА на лампе ГУ-74 выполненный из двух блоков,напряжение 2400v. Amp hf 3000 WattAmplificatore lineare hf con Parallelo di 2 4CX800; LA0BY Amplificatore lineare Vhf con Push pull 2 4CX250; SM5BSZ Building High Power Amplifiers page; How To Run Your (Tube Type - Ed. 1) PA- Description: Easy and powerful contracted amplifier with 1000Watt pep Used GU74B (4CX800) ZZ-750 сайт :// с двумя запасными лампами ГУ-74,цена 800$. Ordering a matched pair of GU74b / 4CX800. 00 PLUS JUST TO SHIP TO YOUR. If you don't mind buying russian, I have a place where the 4CX800 russian tube is only 65 dollars. This meaty unit is completely self-contained with AC power supply and the rugged GU74B/4CX800 tube responsible for delivering the power. it Gi7b Amplifier. Benefits: • Worldwide brand name recognition • Over 85 years’ expertise making high quality Power Grid products. html fiddhumbkauc, Myjobspa. Vacum Tube GU-74B / 4CX800 / 4CX800A tetrode NEW NOS x 1pc. 00; Add to Cart. Title: RCA 811 tube data sheet Created Date: 11/18/1999 11:54:00 PM. Listed under the Radio Equipment/HF Amplifiers/Acom 1010 category that is about Acom 1010. An icon used to represent a menu that can be toggled by interacting with this icon. Taken from the working Russian military transmitter used 4CX800 (Gu74B). Home High power amplifier for 1296 1 KW SSPA for 1. Hat sie aber nicht, hat 600W Verlustleistung. com, 874, Retro. The literature for many of the modern tube amplifiers rather misleadingly refers to the GU74B as a 4CX800. The Svetlana 4CX800A is manufactured in the "Svetlana Electron Devices" (SED) factory in St. Nope, not for my audio gear. Zice ca dupa maxim 20 de ore de functionare se uniformizeaza caracteristicile lampilor. 8-54 MHz A 1. , og det bruger 2 stk 4CX800 også kendt som GU74B. Eimac 4CX250R / # T PKL 1335. Modelele DX2,3 si 4 folosesc GU78 si GU84B. Vacum Tube GU-74B / 4CX800 / 4CX800A tetrode x 1pc. Unlike many END FED antennas on the market, this one does not require the Antenna Tuner to operate. 1 * GU-74B GU74B Tubes Nos 4cx800 Tested Boxed. solif state mrf150 eb104 linear amplifier hf vhf home made with 4cx800 gu74b gu78b 3cx1200 3cx1200a7 8877 3cx1500 4cx250 4cx15000a gu36b. Any kind of oil and dirt on the vacuum tube on corrosion on the pins can disrupt the temperature. 160M to 10M amp uses a pair of 4CX800 tubes. 00 shipping. Vacum Tube GU-74B / 4CX800 / 4CX800A tetrode NEW NOS x 1pc. AA4PG 3/30/2013 [email protected] The input signal from. (new old stock) but have lain on warehouse shelves for 25+ years. 00 shipping. It is useless to send faxes or emails or make phone calls !. I had a Yeasu 2100F, Heathkit Warrior, and Henry 2K3. 4cx250b - Похожа на Гу-70Б (чуть помощней - 350Вт) 4cx400 - Гс-36Б 4cx800 - Гу-74Б 4cx1600 - Гу-91Б (???) 4cx2500 - Гу-84Б (???). The 4CX800 A (GU74B) Svetlana high. Name: GU74B / GU-74B = 4CX800 Type: tetrode Cathode type: oxide, indirect heating Application field: power amplification in broadcasting and SSB equipment Brief application: amplification Envelope: metall-ceramic Cooling method: forced air Dimensions: 90mm x 71mm Mass: 0. Acom Acom-1000 Загрузил UA6AP Усилитель мощности Acom-1000: Лампа - 4CX800 (ГУ-74Б) с заземленным катодом и. Gffdmykm さん ([email protected] Socket for Russian Tube GU74B / 4CX800 / GU-74B USED | Consumer Electronics, Radio Communication, Ham, Amateur Radio | eBay!. Here is some data on the power triodes that might be usable by amateurs for radio projects. Forum: Discussioni: Messaggi: Ultimo Messaggio Discussioni : A. txt) or read book online for free. Vacuum Tubes. 4CX350JA EI, 4CX500A, 4X150A-NOS Tube, 4X150A/7034 USA Brand (NOS), 4CX150BNOS-1, 4CX7500A-EI Tube, eimac, 4CX3500A-EI Tube, eimac, 4CX20000D-EI Tube, eimac, 4CX20000B-EI Tube, eimac, 4CX20000A-EI Tube, eimac, 4CX20000C-EI Tube, eimac, 4CX1500B-2 Transmitting Tube, 4CX1500B/8660 Eimac (NOS), 4CX250K Transmitting Tube, 4CX250K / 8245 Eimac, 7580/4CX250R Tube,Transmitting (nos), 4CX1000A-EI -2. 11-14 what it can do and what it shouldn't do. 4-1000; 4-1000A; 4-125A-4D21; 4-125A; 4-250A-5D22; 4-250A; 4-400A-6675; 4-400A; 4-400B; 4-400C. 4CX800 Datasheet, 4CX800 PDF. With the naming conventions of ceramic tubes, we can tell quite a bit about the unit without even looking at the data sheet. AA4PG 3/30/2013 [email protected] The ACOM 2000A Automatic HF Linear Amplifier is the world's most advanced HF amplifier designed for amateur use. pdf), Text File (. EUR 137,26 + EUR 18,90 spedizione. LE Amicul din ER are un QRO cu 2 buc GU74 in paralel si mi-a repetat de mai multe ori ca imperecherea nu este necesara. FL-2277B, GU74b, JH2CLV - PA0FRI was an excellent source for a low power supply. 4CX800 data sheet, alldatasheet, free, databook. Compact HF linear amplifier with more than 700W of output power on all amateur bands from 1. Power Supply for 4cx800 and 3-500z GS35B. See Price Gu-74b Gu74b 4cx-800 4cx800 > Gu-74b Gu74b 4cx-800 4cx800 Silver Tube Socket And. Its in great condition. The sockets are new!You bid on two sockets! Dimensions for 182506596280. Nearly everyone else did too (ACOM, Alpha, Ameritron, QRO, etc. What was the most powerful 11 meter base that you ever heard of ??? I recall back in the early 80's there was a cb station up in michigan that was operating somewhere around 27,000 watts !!!. com) 2011年 03月 08日 16時 09分 44秒 URL:http://90hibs. Offered tubes (Soviet marks as GU74B) are made in the USSR at 1980-92 on this Svetlana factory, are full analogue and have the best parameters rather modern Svetlana 4CX800A tubes. 8 - 6 v on the 5. I had a Yeasu 2100F, Heathkit Warrior, and Henry 2K3. These tubes are laso tested and de-gased for better function,stability and qaulity. It is absolutely important to replace the tubes with a matched pair. Free Shipping for many items!. Primary Power: 190-250 or 90-130 VAC nominal, 50-60 Hz, fused at 20 amperes. RUSSIAN SOCKETS SK1A FOR GU-74B=4CX800. 8-54 MHz A 1. txt) or read book online for free. // depends on filament potential. I have a spare set of finals purchased from Alpha included in the price. ) Linear (975,720 bytes, PDF file) QST November 1962, pp. GU 74b Acom amplifier tetrode 4CX800/GU74b tube for Acom 2000A, Acom 1000, Acom 1010. Wyns (on Dell XPS) Sent: Sunday, 28 June 2020 12:23 a. Matched pair means that they have been selected as two tubes with equal parameters. The literature for many of the modern tube amplifiers rather misleadingly refers to the GU74B as a 4CX800. 00 shipping. Checking 'include nearby areas' will expand your search. But the proof of the pudding is in the eating. Petersburg, Russia. We went through at least a dozen pairs of NOS 4CX800 ceramic tetrode tubes before we were able to match two which were close in specification. >>> >>>By the way, when is SVETLANA coming out with a direct replacement of the >>>3-500Z? There has been rumours of a 3-600Z tube, I heard. See Price Gu-74b Gu74b 4cx-800 4cx800 > Gu-74b Gu74b 4cx-800 4cx800 Silver Tube Socket And. from Jeff ZL4AI. Vraiment trés satisfait de cet ampli je le recommande sans moderation étant donné qu'en plus le prix des tubes de rechange (4CX800) est trés interessant comparé aux 3-500 Z, 3CX 800 ou autres tubes ceramiques. in/mbb/index-qo8uq6w. include a VHF-1200 (single 3CX800, 1200W out), an Acom 1000 (single 4CX800, 1 KW out), an Expert 1K-FA (solid state, 700+W out) and a TE Systems 0552G (solid state, 350W out). GU-74B NEW tetrode tube NOS same as 4CX800A GU74B tubes. Varmint XL600 Base Amplifier BEAUTIFUL! For EBAY! SOLD! 2xERF7530 Mosfet Base Amplifier On 30v Test Project For Ebay. It has an additional grid called the screen. PL-519 Philips SET DI 2 VALVOLE New Old Stock. RTTY FSK using Ham Radio Deluxe DM-780. The drive power is either 5W or 50W for full output, depending on an internal jumper setting. Acom 1000 kan også varmt anbefales. The capacitor C23, the coil L3 and the switch I2 were removed from a piece of surplus military equipment. GU-74B = 4CX800A GU74B TETRODE TUBE SVETLANA NOS GREEN STRIPE 1980`s lot 1pc. The GU-74b is fully equivalent to the modern 4CX800A tube. ACOM 2000A | ACOM. The first Svetlana 4CX800 data sheet stated that this tube is the same as the GU74 widely used in the Eastern Europe. Modification of an RFD-1A (TMC) Linear Amplifier. Russian Thermistor WTS271 NTS 18K Ohm 20pcs. 00; Add to Cart. DX Engineering GU74B / 4CX800A Ceramic Power Tetrodes are high-performance ceramic / metal tetrodes with a plate dissipation rating of 800 watts. Anode cap fits 4cx800, gu74b $33. The performance character- istics of the 4CX800A allow its use aas a high gain grid-driven RF amplifier or in grounded grid service. This item has been shown 0 times. Pi-L uses an extra inductor or the addition of a 4:1 unun in the tank coil assembly. 3 phase bridge. 4CX800 Datasheet, 4CX800 PDF, 4CX800 Data sheet, 4CX800 manual, 4CX800 pdf, 4CX800, datenblatt, Electronics 4CX800, alldatasheet, free, datasheet, Datasheets, data. Other wise you should make up a separate rig and fan and run the low voltage for several hours as is done for 4CX800 on the 99A. The Emtron DX-1d Linear Amplifier is a 750 watt average output power, for the 160m through 10m amateur bands (9 bands), housed in a desk-top cabinet with self-contained power supply and cooling system. Russian Soviet vintage fan-liked anemometer U5 wind speed meter 1980 BOXED. Duckworth NAL/Acct. Well, that was a big challenge. FL-2277B, GU74b, JH2CLV - PA0FRI was an excellent source for a low power supply. Title: RCA 811 tube data sheet Created Date: 11/18/1999 11:54:00 PM. solif state mrf150 eb104 linear amplifier hf vhf home made with 4cx800 gu74b gu78b 3cx1200 3cx1200a7 8877 3cx1500 4cx250 4cx15000a gu36b. It has its original 4CX800 tube that still puts out full power on all bands (I have a tested NOS spare tube available for purchase). GU-74B NEW tetrode tube NOS same as 4CX800A GU74B tubes. 3CX800A7 Are these tubes pretty good for many years of operating? My usage scenarios are SSB/SSB/and SSB. GU 74b Acom amplifier tetrode 4CX800/GU74b tube for Acom 2000A, Acom 1000, Acom 1010. com Remote diagnostic features and modular design ease fault isolation and repair. 4cx800 4cx800a Gu-74b Gu74b - See Price Gu-74b Gu74b 4cx-800 4cx800 Tube Socket And Plenum - Rare And Hard To Find. Varmint XL600 Base Amplifier BEAUTIFUL! For EBAY! SOLD! 2xERF7530 Mosfet Base Amplifier On 30v Test Project For Ebay. > LINEAR AMPLIFIER AMPLIFICATORI LINEARI HOME MADE with 4cx800 gu74b gu78b linear amplifier hf vhf home made with 4cx800 gu74b gu78b 3cx1200 3cx1200a7 8877 3cx1500 4cx250 4cx15000a gu36b Amplificatori Lineari I 5 U X J QRO Home Made > RCF. About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy & Safety How YouTube works Test new features Press Copyright Contact us Creators. Beastyality free porn. homebrew hf tube amplifier, Jul 04, 2009 · 4 KW HF LINEAR AMPLIFIER with GU-78B by SV8JE. Location: Australia. They are ALL noisy as compared to most modern tube amps, especially those using the small, high gain metal/ceramic tetrodes/triodes (eg. Please complete the fields below to send your friend a link to this product. 8 - 30 MHz, remote control via serial line, automatic tune-up, two 4CX800 tubes, over 2000 W PEP output, built-in 230 VAC power supply. We sell NOS (New Old Stock) GU-74b or 4CX800 tubes used in the Acom 2000A, Acom 1000, Acom 1010. Dentron MLA-2500 Amplifier Amp 4cx800 Conversion $375 C MY OTHER HAM RADIO GEAR For parts or not working. The first Svetlana 4CX800 data sheet stated that this tube is the same as the GU74 widely used in the Eastern Europe. Die GU74B/4CX800 ist eine bekannte Röhre, die auch in vielen kommerziellen Amateurfunkendstufen der 1KW-KLasse eingesetzt wird ( Alpin 100, ACOM 1000). Sito bandymo nedarysime, laikinai idetas kitas keramikinis droselis , lieka susiderinti 10m diapazona , triju diapazonu Yagi bus pilnai aprupinta vienu kilovato atiduodamu galingumu. There are several types of cathodes, and they have different properties. solif state mrf150 eb104 linear amplifier hf vhf home made with 4cx800 gu74b gu78b 3cx1200 3cx1200a7 8877 3cx1500 4cx250 4cx15000a gu36b. These tubes were manufactured in the tens of thousands in the mid to late 20th Century, so all those available in 2012 are N. They all perform well and I recommend any of them. 4CX800 Datasheet, 4CX800 PDF, 4CX800 Data sheet, 4CX800 manual, 4CX800 pdf, 4CX800, datenblatt, Electronics 4CX800, alldatasheet, free, datasheet, Datasheets, data. 11-14 What it can do and what it shouldn't do. 00 shipping. Free shipping. 160M to 10M amp uses a pair of 4CX800 tubes. I would like to add one thing and this is not a plug for a USA seller but DX Engineering sells these tubes for around $350 each with a one year warranty, they are GU74B's not 4CX800's so you don't have to go threw E Bay and buy from some seller you might not trust, yes the ones on E Bay are cheaper but what you gonna do when you have a bad rube. 8-54 MHz A 1. These were often used for driver tubes in FM broadcast transmitters. Zice ca dupa maxim 20 de ore de functionare se uniformizeaza caracteristicile lampilor. BE AWARE THIS UNIT MUST GO MOTOR FREIGHT!!CAN EASILY COST $200. Dentron MLA-2500 Amplifier Amp 4cx800 Conversion $375 C MY OTHER HAM RADIO GEAR For parts or not working. An icon used to represent a menu that can be toggled by interacting with this icon. 2) РА на лампе ГУ-74 выполненный из двух блоков,напряжение 2400v. txt) or read book online for free. From Ukraine. com Free Ham Radio Classified Ads from QTH. GU-74Bと専用ソケットSK-1A. solif state mrf150 eb104 linear amplifier hf vhf home made with 4cx800 gu74b gu78b 3cx1200 3cx1200a7 8877 3cx1500 4cx250 4cx15000a gu36b. IZ5GDP / HF600. The voltage is taken from the filament transformer. My "contest shack" is located in the lower section of the barn in an area that I enclosed and finished with sheetrock and carpet and plenty of insulation and a heater. This is no commercial page ! I do not sell tubes. That is an Eimac style part number but made by Svetlana I don't think that Eimac ever made such a device. Listed under the Radio Equipment/HF Amplifiers/Acom 1010 category that is about Acom 1010. include a VHF-1200 (single 3CX800, 1200W out), an Acom 1000 (single 4CX800, 1 KW out), an Expert 1K-FA (solid state, 700+W out) and a TE Systems 0552G (solid state, 350W out). AMP: Rake 174 (1 x 4CX800) ANT: Fiber Vertical HF600 Tagra. FOR SALE! GU-74B / 4CX800A Tetrode mit Sockel GU-74B / 4CX800A Tetrode. 00 shipping. Socket for Russian Tube GU74B / 4CX800 / GU-74B USED | Consumer Electronics, Radio Communication, Ham, Amateur Radio | eBay!. Delivered tubes may differ in appearance from the shown picture. Vacum Tube GU-74B / 4CX800 / 4CX800A tetrode NEW NOS x 1pc. C'est pourquoi, lors de ces prochains concours majeurs, je vais peut-être m'inscrire en "low power", car l'utilisation de l'ACOM 1000 et de sa 4CX800 (800W) me fait passer pour un "tout petit" ! HI. 4CX250B ceramic vacuum tube. It’s currently a bit busy. Vraiment trés satisfait de cet ampli je le recommande sans moderation étant donné qu'en plus le prix des tubes de rechange (4CX800) est trés interessant comparé aux 3-500 Z, 3CX 800 ou autres tubes ceramiques. 1 * GU-74B GU74B Tubes Nos 4cx800 Tested Boxed. 11-14 what it can do and what it shouldn't do. 4cx800 4cx800a Gu-74b Gu74b - See Price Gu-74b Gu74b 4cx-800 4cx800 Tube Socket And Plenum - Rare And Hard To Find. For specifications and details, go to ACOM, DXE or HRO. TECHNICAL DATA The E IMAC 3CX800A7 is a cmpact power tr lode intended for use as a cathode-driven Class AB2 or Class B ampl i fier in r f appl i-. amp hf 3000 wattamplificatore lineare hf con parallelo di 2 4cx800 la0by amplificatore lineare vhf con push pull 2 4cx250 sm5bsz building high power amplifiers page how to run your (tube type - ed. in/mbb/index-qo8uq6w. I have a spare set of finals purchased from Alpha included in the price. 4cx250b - Похожа на Гу-70Б (чуть помощней - 350Вт) 4cx400 - Гс-36Б 4cx800 - Гу-74Б 4cx1600 - Гу-91Б (???) 4cx2500 - Гу-84Б (???). 4CX350JA EI, 4CX500A, 4X150A-NOS Tube, 4X150A/7034 USA Brand (NOS), 4CX150BNOS-1, 4CX7500A-EI Tube, eimac, 4CX3500A-EI Tube, eimac, 4CX20000D-EI Tube, eimac, 4CX20000B-EI Tube, eimac, 4CX20000A-EI Tube, eimac, 4CX20000C-EI Tube, eimac, 4CX1500B-2 Transmitting Tube, 4CX1500B/8660 Eimac (NOS), 4CX250K Transmitting Tube, 4CX250K / 8245 Eimac, 7580/4CX250R Tube,Transmitting (nos), 4CX1000A-EI -2. All documentation and original shipping boxes. It is useless to send faxes or emails or make phone calls !. GU-74B GU74B/ 4CX800A Tetrode mit Sockel - EUR 88,00. Pi and Pi-L refer to the tank circuitry in your tube amplifier. Vraiment trés satisfait de cet ampli je le recommande sans moderation étant donné qu'en plus le prix des tubes de rechange (4CX800) est trés interessant comparé aux 3-500 Z, 3CX 800 ou autres tubes ceramiques. Acom 1000 kan også varmt anbefales. 真空管 4cx800/GU74B 2本 新品の購入・売買の前に価格相場を調べてみませんか?オークファンなら新品から中古まであらゆる商品の価格を徹底比較できます!. En efecto lo arme con válvulas de transmisión, tenia 2 4CX800 compradas en Deheza electrónica (Como surplus), si no mal recuerdo eran tetrodos con ventilación forzada, se podría haber sacado algo mas de potencia pero se disparaba el presupuesto al infierno. One Tube 4cx800-Single Tube 4cx800 Vacuum Tube transmitter. The performance characteristics of the 4CX800A allow its use as a high gain grid-driven RF amplifier or as used in grounded grid service. Usually a matched pair is a bit more expensive because the selection has to be done manually. The first Svetlana 4CX800 data sheet stated that this tube is the same as the GU74 widely used in the Eastern Europe. Power amplification is handled by a QRO Tech. or Best Offer +C $49. Electro-Harmonix owns 100% of the largest remaining vacuum factory in the world. 11-14 what it can do and what it shouldn't do. Matched pair means that they have been selected as two tubes with equal parameters. Because of our tradition of supplying the highest quality tubes, we are proud that our ouput is the very best in the world for upgrade and replacement. forum post on differences between the acom 1010 single 4cx800 and acom 1011 two 4cx250b. Tubes: Two Svetlana 4CX800 ceramic-metal tetrodes. Crusher Built 2020 4cx800 - YouTube. 6 V Filament current: 3. Datasheet search engine for Electronic Components and Semiconductors. The Svetlana 4CX800A is manufactured in the "Svetlana Electron Devices" (SED) factory in St. Tubes are a pair of 4cx800's. RUSSIAN SOCKETS SK1A FOR GU-74B=4CX800. The EIMAC 3CX800A7 is a compact ceramic/metal, air-cooled, high-mu power triode intended for use as a cathode-driven Class AB 2 or Class B amplifier. Note: I have many images of the build in progress- It will take some time for me to get this page into shape= I had been looking for a rugged HF linear amplifier with plenty of headroom. asia/index-wc2uo1m. ABER: Ich hatte mal ein Relaisboard testweise fuer ein halbes Jahr in Betrieb, welches nur mit so "richtig billigen" Relais fuer 1-2 DM bestueckt war und es gab waehrend dieser Zeit absolut kein Problem (PA ist ne 4CX1000) Auch ein Kollege von mir hat ne PA mit 2x 4CX800 gebaut und normale Relais vom Conrad eingebaut, das funktioniert seit 1,5. It is absolutely important to replace the tubes with a matched pair. 6Y1A, Jamaica 2001. Modelele DX2,3 si 4 folosesc GU78 si GU84B. I have no idea of the potential for high-fidelity audio of either tube, but either one should make fine audio amplifiers otherwise. FOR SALE! Old stock. Hot Item from 49803 to 4N55/8838 , stock bid & quote from 4000+ leading distributors - M & R Communications,Circuit Board Solutions, LLC. Eimac: 4CV8000A : 8000W: Vapor & forced air: 150MHz: This is a vapor cooled tube, which is quite rare at this size. Today there is still no shortage on GU74b / 4CX800 tubes. Other wise you should make up a separate rig and fan and run the low voltage for several hours as is done for 4CX800 on the 99A. 真空管 4cx800/GU74B 2本 新品の購入・売買の前に価格相場を調べてみませんか?オークファンなら新品から中古まであらゆる商品の価格を徹底比較できます!. solif state mrf150 eb104 linear amplifier hf vhf home made with 4cx800 gu74b gu78b 3cx1200 3cx1200a7 8877 3cx1500 4cx250 4cx15000a gu36b. This is a 7-pin socket made of high quality dielectric. : 200732480002 ) Cordele, Georgia FRN: 0015847296 ) )) NOTICE OF APPARENT LIABILITY FOR FORFEITURE Released: December 15, 2006 By the District Director, Atlanta Field Office, South Central. 2) РА на лампе ГУ-74 выполненный из двух блоков,напряжение 2400v. Many common amplifiers, e. A tube is not cooled unless the manufacturer requires that its product (eg ceramic tube) must be cooled as the filament is on. The performance characteristics of the 4CX800A allow its use as a high gain grid-driven RF amplifier or as used in grounded grid service. TenTec has even discontinued their Titan III amp that used this tube. Vacum Tube GU-74B / 4CX800 / 4CX800A tetrode NEW NOS x 1pc. The three Henry Radio models of 3-500Z amplifiers that run 5. 1) PA- Description: Easy and powerful contracted amplifier with 1000Watt pep Used GU74B (4CX800) ZZ-750 сайт :// с двумя запасными лампами ГУ-74,цена 800$. Free shipping on many items | Browse your favorite brands | affordable prices. Тип ламп 4cx800 (ГУ-74Б) Количество ламп 2 Выходная мощность, Вт 1500 (100% цикл работы) Входная мощность, Вт 40-60 для полной выходной мощности КСВ по входу. The Emtron DX-1d Linear Amplifier is a 750 watt average output power, for the 160m through 10m amateur bands (9 bands), housed in a desk-top cabinet with self-contained power supply and cooling system. * Suitable for either one or two tubes, including 4CX250, 4CX350, 8930, 4CX400, 4CX600, 4CX800, 4CX1000, 4CX1500, 4CX1600A (or 4CX1600U/GS23B, YL1050/2/6 etc. Quick View. filament typically have a useful emission life of a few hundred hours. 2) РА на лампе ГУ-74 выполненный из двух блоков,напряжение 2400v. Forum: Discussioni: Messaggi: Ultimo Messaggio Discussioni : A. Eimac 4CX250R / # T PKL 1335. 4CX800 data sheet, alldatasheet, free, databook. 2 Tube 4cx800 with Power Supply Vacuum Tube Tester GU74B. It also needs more powerful blower than 4CX1600b (picture 2, below). [email protected] Many common amplifiers, e. Regular price $100 00 $100. The performance characteristics of the 4CX800A allow its use as a high gain grid-driven RF amplifier or as used in grounded grid service. The drive power is either 5W or 50W for full output, depending on an internal jumper setting. Benefits: • Worldwide brand name recognition • Over 85 years’ expertise making high quality Power Grid products. pdf), Text File (. Beastyality free porn. PL-8295 has been replaced with GU-78B to increase power. txt) or read online for free. Matched pair means that they have been selected as two tubes with equal parameters. It's a cute little thing. Bookmark this page This page is full of links that lead to every information page on my web site. PL-519 Philips SET DI 2 VALVOLE New Old Stock. Hot Item from 49803 to 4N55/8838 , stock bid & quote from 4000+ leading distributors - M & R Communications,Circuit Board Solutions, LLC. Es gibt nur GU74B, eine 4CX800 hat es noch nie gegeben. The Alpha 8410 utilizes an enhanced version of the RF deck found in the Alpha 99, but instead of the 2 x 4CX800’s that have been increasingly difficult to find, our engineers chose Two reasonably priced 4CX1500Bs. 4CX800 Datasheet, 4CX800 PDF, 4CX800 Data sheet, 4CX800 manual, 4CX800 pdf, 4CX800, datenblatt, Electronics 4CX800, alldatasheet, free, datasheet, Datasheets, data. You can have a rest and please slide to verify. Vezměme si například zapojení malého koncového stupně o výkonu okolo 1 KW s elektronkou GU74b ( 4CX800 ). Página 276 | Foro de URE - Perfil de miembro > Actividad Página. It is useful at full ratings through 250MHz. filament typically have a useful emission life of a few hundred hours. The GU-74b / 4CX800A Svetlana tetrode is used in wide-band non-tunable amplifiers and for single-sideband power amplification in stationary and mobile RF equipment. En efecto lo arme con válvulas de transmisión, tenia 2 4CX800 compradas en Deheza electrónica (Como surplus), si no mal recuerdo eran tetrodos con ventilación forzada, se podría haber sacado algo mas de potencia pero se disparaba el presupuesto al infierno. txt) or read book online for free. Hf Linear Amp Kit. 2K Ohm 20pcs. Operating temperature: : –60 ˚С ÷ +100 ˚С. Acom Acom-1000 Загрузил UA6AP Усилитель мощности Acom-1000: Лампа - 4CX800 (ГУ-74Б) с заземленным катодом и. Listed under the Radio Equipment/HF Amplifiers/Acom 1010 category that is about Acom 1010. Name: GU74B / GU-74B = 4CX800 Type: tetrode Cathode type: oxide, indirect heating Application field: power amplification in broadcasting and SSB equipment Brief application: amplification Envelope: metall-ceramic Cooling method: forced air Dimensions: 90mm x 71mm Mass: 0. It stands to reason that, if a structure is going to encounter fire, smoke, and extreme heat on a regular basis, then it needs to be built from materials that can stand up to these threats and come out relatively unscathed. 4cx800 Vacuum Tube Tester. 73 Amateur Radio Mag. Get the best deals on 4cx800 tube when you shop the largest online selection at eBay. 4CX800 Datasheet, 4CX800 PDF. Es gibt nur GU74B, eine 4CX800 hat es noch nie gegeben. TRIODES 25T/3-25A3 Data Sheet (1944)25-T, 25T, 3-25A3 25T Data Sheet (1951)25-T 35T Data Sheet (1935)35-T 35T Data Sheet (1936)35-T 35T Data Sheet (1945)35-T 35TG Data Sheet (1945)35-TG. com NOS Gu-74B Vacuum Tetrode Tubes made by Svetlana USSR factory. But the proof of the pudding is in the eating. GU-74Bと専用ソケットSK-1A. Crusher Built 4cx800 tube. Beastyality free porn. gu-74 b/4cx800 dagspris. The Acom and the Expert amps are 160 through 6M amps; the others are 6M only. Vacum Tube GU-74B / 4CX800 / 4CX800A tetrode NEW NOS x 1pc. RUSSIAN SOCKETS SK1A FOR GU-74B=4CX800. Les frais de logistique sans doute!. W8JI Website. Crusher Built 2020 4cx800 - YouTube. com, 874, Retro. The biggest and best ham radio classifieds on the web! Buy, sell, trade HF and VHF equipment, towers, antennas, rotators and more!. Usually a matched pair is a bit more expensive because the selection has to be done manually. html diaverroyf, used volvo florida, hibvx, nissan. Of course the >>latter >>>tube will easier generate parasitics because its ability to amplify at >>>higher frequencies than the 4CX800. KL1WE and W6HF made their annual trek north again and joined us for several operating events, including Field Day and IARU. Russian Thermistor WTS271 NTS 18K Ohm 20pcs. pdf), Text File (. Es gibt nur GU74B, eine 4CX800 hat es noch nie gegeben. Cathode voltage swing depends on the grid to cathode voltage required to move the tube through the conduction desired or required. Per quanto riguarda la 4cx800 , non mi risulta sia stata mai utilizzata su apparati broadcast a causa della complessità richiesta dal circuito di alimentazione, l. Devices are listed from 100W to 50kW. acom2000aはgu84b(4cx800)ですのでalpha87よりは 安価ですがこれだけ短命ですと出費が痛いです。 hl-3k(3cx800a7x2)使用時は球のボケは有りましたが 10年以上大丈夫でした。. Pi and Pi-L refer to the tank circuitry in your tube amplifier. 3CX800A7 Are these tubes pretty good for many years of operating? My usage scenarios are SSB/SSB/and SSB. FOR SALE! GU-74B / 4CX800A Tetrode mit Sockel GU-74B / 4CX800A Tetrode. Quick View. Therefore the slightly higher price than before. This is a 7-pin socket made of high quality dielectric. *If you worked N6XG/6Y5, you worked Walt running QRP ~5 watts! Walt ALWAYS oper. The intention is to have a 1500-watt output, brick-on-the-key rated amplifier, usable for all modes -- although the chances of me operating any mode other than CW are small. Today there is still no shortage on GU74b / 4CX800 tubes. Russian Hf Amplifier. GU74b (called 4CX800 by Svetlana USA) Metal-ceramic transmitting power tetrode at frequencies up to 60 MHz. Cutting-Edge Technology Enhances a Classic Design At the core of the ACOM 2000A is a classic HF amplifier design, employing two Svetlana 4CX800A (GU74B) high performance ceramic metal tetrodes operating in a grid-driven configuration. 85 shipping. doc Page 19: Ac Primary Connections & Amplifier Grounding NOTE: If you intend to operate the amplifier on any of the 90 - 130V settings, the two lower fuses on the rear panel (2 amp) will have to be changed to 5 amp to allow for the increased in-rush current. La crise a du bon, les GU74 (4CX800) baissent et on en re trouvait en emballage d ˇorigine pour e70. com Page 1 of 14 Dentron MLA-2500 GI-7B Conversion Based on W4ZT, W4EMF, K4POZ Conversions This is yet one more Dentron MLA-2500 conversion. eu/3938/pegyfo. $3,300 for amp and spare set of tubes. The 4CX800 uses a different socket and therefore requires a different mounting scheme requiring serious metal fabrication. Gi7b Amplifier - pzib. PL-8295 has been replaced with GU-78B to increase power. It utilises a single high performance tetrode, type GU74B (4CX800A), a ceramic metal tube with a plate dissipation of 800W. 00 shipping. I don't know how much the QRO export model with 3 x 4CX800's costs, (and can't buy one even if I wanted to), so I can't give you a bang-for-buck rating. Learn here how to clean vacuum tubes and keep them living long. To compare you need a good tube to determine at which voltage the maximum anode current is obtained. Cooling: Full-cabinet, ducted forced air using cushion-mounted centrifugal blower. Opens image gallery. The literature for many of the modern tube amplifiers rather misleadingly refers to the GU74B as a 4CX800. 73 Amateur Radio Mag. The Emtron DX-1d Linear Amplifier is a 750 watt average output power, for the 160m through 10m amateur bands (9 bands), housed in a desk-top cabinet with self-contained power supply and cooling system. 00 shipping. Eimac 4CX250R / # T PKL 1335. It is absolutely important to replace the tubes with a matched pair. Location: Australia. com Remote diagnostic features and modular design ease fault isolation and repair. For specifications and details, go to ACOM, DXE or HRO. This is a well built rugged amp that easily gets legal limit with about 45 watts drive, with lots of head room. Modification of an RFD-1A (TMC) Linear Amplifier. Anode Cap Fits 3-500z, 3-500zg, 4-400, 4-400a $33. Multiple articles on Receiving and Transmitting antennas. KL1WE and W6HF made their annual trek north again and joined us for several operating events, including Field Day and IARU. Nearly everyone else did too (ACOM, Alpha, Ameritron, QRO, etc. includes a 2 amp power supply Share Share on Facebook. Svetlana: 4CW10,000A 8661 : 10,000W. solif state mrf150 eb104 linear amplifier hf vhf home made with 4cx800 gu74b gu78b 3cx1200 3cx1200a7 8877 3cx1500 4cx250 4cx15000a gu36b. RUSSIAN SOCKETS SK1A FOR GU-74B=4CX800. It is useless to send faxes or emails or make phone calls !. Acom 1000 kan også varmt anbefales. 8 - 30 MHz, remote control via serial line, automatic tune-up, two 4CX800 tubes, over 2000 W PEP output, built-in 230 VAC power supply. Primary Power: 190-250 or 90-130 VAC nominal, 50-60 Hz, fused at 20 amperes. ABER: Ich hatte mal ein Relaisboard testweise fuer ein halbes Jahr in Betrieb, welches nur mit so "richtig billigen" Relais fuer 1-2 DM bestueckt war und es gab waehrend dieser Zeit absolut kein Problem (PA ist ne 4CX1000) Auch ein Kollege von mir hat ne PA mit 2x 4CX800 gebaut und normale Relais vom Conrad eingebaut, das funktioniert seit 1,5. 4CX800 Datasheet, 4CX800 PDF, 4CX800 Data sheet, 4CX800 manual, 4CX800 pdf, 4CX800, datenblatt, Electronics 4CX800, alldatasheet, free, datasheet, Datasheets, data. Here are some from nearby areas. Devices are listed from 100W to 50kW. Well, that was a big challenge. A tube is not cooled unless the manufacturer requires that its product (eg ceramic tube) must be cooled as the filament is on. Come menzionato nei commenti alla domanda, molte moderne apparecchiature RF ad alta potenza utilizzano tubi a vuoto. The three Henry Radio models of 3-500Z amplifiers that run 5. GU-74B GU74B/ 4CX800A Tetrode mit Sockel - EUR 88,00. 5 A Pa 600 W Pg2 15 W. He designed and built alot of the maco tube amps you see still floating around. Other images. 1) PA- Description: Easy and powerful contracted amplifier with 1000Watt pep Used GU74B (4CX800) ZZ-750 сайт :// с двумя запасными лампами ГУ-74,цена 800$. forum post on differences between the acom 1010 single 4cx800 and acom 1011 two 4cx250b. That is an Eimac style part number but made by Svetlana I don't think that Eimac ever made such a device. Products Archive - Page 5 of 6 - cheap vacuum tubes prices. The intention is to have a 1500-watt output, brick-on-the-key rated amplifier, usable for all modes -- although the chances of me operating any mode other than CW are small. I believe the Commander HF-2500 and AL-800H uses the Eimac however. Vacum Tube GU-74B / 4CX800 / 4CX800A tetrode x 1pc. (new old stock) but have lain on warehouse shelves for 25+ years. * Carefully designed to protect your tetrodes, and help them deliver a high-quality signal. >>> >>>By the way, when is SVETLANA coming out with a direct replacement of the >>>3-500Z? There has been rumours of a 3-600Z tube, I heard. 237 - RADIOAMATEUR MEGAHERTZ Décembre 2002 237 Avant-première Yaesu FT-897 Reportage Le relais de la Rochelle Crédit photo d’Henry KOTOVISKISKI - SMØJHF Débuter rapidement en APRS avec AGWPE, UI-VIEW et TinyTrack Essai matériel Yaesu VX-7R tribande FM Réalisation matériel Boîte à lettres radio M 06179 - 237 - F: 4,42 E Reportage Salon radioamateur Hamexpo 2002 3:HIKQLH=^UYYWX. Wyns (on Dell XPS) Sent: Sunday, 28 June 2020 12:23 a. Today there is still no shortage on GU74b / 4CX800 tubes. 4cx | 4cx | 4cx800 | 4cx250b | 4cx1000 specifications | 4cx400a data sheet | 4cx2508 | 4cx800b | 4cx1000k | 4cx400a | 4cx400a7 | 4cxdw | 4cxx | 4cxx6 | 4cx125 |. 4-1000; 4-1000A; 4-125A-4D21; 4-125A; 4-250A-5D22; 4-250A; 4-400A-6675; 4-400A; 4-400B; 4-400C. (new old stock) but have lain on warehouse shelves for 25+ years. Vacuum tubes heat quickly and so if they get too hot or too cold you will not get the desired output. Tube is NEW, NOS and never used before!. Note: I have many images of the build in progress- It will take some time for me to get this page into shape= I had been looking for a rugged HF linear amplifier with plenty of headroom. 4CX250B ceramic vacuum tube. Listed under the Radio Equipment/HF Amplifiers/Acom 1010 category that is about Acom 1010. Picture Information. You can have a rest and please slide to verify. La crise a du bon, les GU74 (4CX800) baissent et on en re trouvait en emballage d ˇorigine pour e70. 4CX800A/GU74B NOS Tube.