Eimac 4cx800

Eimac 4cx800We sell NOS (New Old Stock) GU-74b or 4CX800 tubes used in the Acom 2000A, Acom 1000, Acom 1010. Re: [Amps] QRO 2500DX MARK lll 4CX800, (continued). 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. Technical Characteristics: Ouput Power 2KW, Power Gain 13dB, Anode Voltage 4500V, Anode Current 1A, Grid …. tubes with plate diameter of 0. The current tubes are 'T4', 550mm long and 12mm diameter. 15mH Ham Radio Description 4cx5000 fu101 gs35b gi7b gi7bt 3cx3000 3cx3000a7 4cx1000 4-1000 3-500zg 3-500z 4-400 3cx800 3cpx800 yc156 3cx5000 4cx1500 gu74b gu94b 4cx800 eimac …. This is a short video of my GS31B HF amplifier working. The differences between the tubes comes from Svetlana and Eimac is the operating temperatur they reached. Some common brands include Amplitec, Emtron, Dentron, and Eimac. amplifiers,gs23b,gu74b,gu78b,4cx2500,4cx800,The new Eimac 8877 Alpha 91 B amplifier with 4CX800 Tubes KT36XA Antenna from . 4cx800 4cx800a Gu-74b Gu74b - See Price Gu-74b Gu74b 4cx-800 4cx800 Tube Socket And Plenum - Rare And Hard To Find. 0 out of 5 stars based on 2 product ratings (2) Sylvania 3B28 Vintage Rectifier Tube for Collins 30S-1 / d3. A pi-L network is used in the output circuit of the amplifier. Freq 110MHZ (max) cocok untuk boster HF. For more information, please send an email to [email protected] GS-36B NEW tetrode vacuum tube 4CX400A NOS 1991. Ampeg → SuperReverb Amplifier R-15-R. With 1,200 watts input when used as linear power amplifier, the 4CX800A will conservatively produce 750 watts PEP SSB, and 750 watts Key-Down CW. I have a pair in my alpha 87a and they work. 00 on a Like most amplifiers utilizing the 4CX800 tetrodes, this one has a . 194,89 EUR Eimac 4CX3000A / 8169 RF Power Tetrode tube. I am still running the original 1986 Eimac 3-500Z's in my LK-500ZC at 1200W as an example of REAL longevity at hard use in contesting and on AM. The Ameritron AL-800 is a 1200 Watt linear amplifier covering all HF ham and WARC bands (a simple user mod is required for 10/12m operation). A double handful of small CRT's for scopes, modulation monitors, etc. As a linear amplifier, high power gain may be obtained with excellent intermodu-. 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 …. I came across a site that claims the John Boy Tube Amps are the best quality tube Amps, I'm curious as to what anyone can tell me about these …. 39-43, 128 Alignment procedure for an old tube type SSB amplifier. Svetlana, 4CX800A, 800W, Forced air, 150MHz, 4CX800. Usually a matched pair is a bit more expensive because the selection has to be done manually. Currently, the model 99 has taken it's place, but now uses the Svetlana 4CX800's. • ACOM 1000 uses 4CX800 / GU74B Russian tube • Weighs only 50 lbs. The coil should be a 12 ga (inner Ø2. Review Summary For : Svetlana GU74B/4CX800A ceramic tetrode. 8809 4CX600J 8921 4CX600JA TECHNICAL DATA The EIMAC 8809/4CX600J is a cerami c/metal, forced-air cooled, radial beam tetrode with a rated maximum plate dissipation of 600 watts. Eimac というと無線歴50年前後の私たちの世代のアマチュア無線家にとっては多少の思い出や、いつかはEimac …. That is an Eimac style part number but made by Svetlana I don't think that Eimac ever made such a device. 4CX800A data sheet, alldatasheet, free, databook. Check Google, check the ARRL …. 40 watts of drive gives 1500 watts output and 65 watts of drive is an easy 2500 watts into a dummy load of course. I know that the 3-500Z was cheaper 25 years ago then they are now. EIMAC (SK-630A) TUBE SOCKET w/CHIMNEY. I recently noticed replacement Eimac 3CX800 tubes for $525. 1 * GU-74B GU74B Tubes Nos 4cx800 …. About Amplifier Homebrew Hf Tube. Svetlana 4CX800A High Performance Tetrode Typical Operation (grid driven, single tone) Frequency 60 60 MHz Power output 550 780 W DC plate voltage 2 2. The EIMAC 8809/4CX600J is a cerami c/metal, forced-air cooled, radial beam tetrode with a rated maximum plate dissipation of 600 watts. The GU-74b is fully equivalent to the modern 4CX800A tube. Unlike Eimac, Philips and similar manufactures who design tubes for CCS service along with plenty of reserve emission to compensate for aging. Pi and Pi-L refer to the tank circuitry in your tube amplifier. 0/5, that's the highest you can go for points ratings here on Eham. It is designed around a single Eimac…. Re: [Amps] QRO 2500DX MARK lll 4CX800, Carl; Re: [Amps] QRO 2500DX MARK lll 4CX800. , og det bruger 2 stk 4CX800 også …. I have a Dentron MLA-2500B HF amp, old but was working fine. NIB! GU74B = 4CX800 = 4CX800A tetrode SVETLANA ОТК New Listing Eimac 4CX300A 8167 - Simple Puissance Transmettant Tube - Nib - NOS 60 Day. The 4CX3000A is designed to be used as a Class AB 1 linear amplifier in audio or radio-frequency applications. > > In amateur service, virtually zero tube failures come from filament > hours. Estoy de acuerdo,pero el paso final aguanto? quiero decir el original. TRIODES25T/3-25A3 Data Sheet (1944) 25-T, 25T, 3-25A325T Data Sheet (1951) 25-T35T Data Sheet (1935) 35-T35T Data Sheet (1936) 35-T35T Data Sheet (1945) 35-T35TG Data Sheet (1945) 35-TG35TG Data Sheet (1951) 35-TG50T Data Sheet (1934) 50-T75T Data Sheet 75-T75TH Data Sheet (1944) 75-TH75TH Data Sheet (1952) 75-TH75TL Data Sheet (1946) 75-TL75TL. Agree with your comments about Eimac tubes being designed and built to CCS specifications and their associated excellent longevity. Realmente pensé en usar uno de los tubos rusos GU74, un poco menor al ruso Eimac 4CX800. EIMAC 3CX1500A7, 4CX250B , 2C39, SVETLANA. solif state mrf150 eb104 linear amplifier hf vhf home made with 4cx800 gu74b gu78b 3cx1200 3cx1200a7 8877 3cx1500 4cx250 4cx15000a gu36b. Certain tubes can be rebuilt by EIMAC, or a company called "EconCo" (now owned by EIMAC), for about 60% of new price, the re-built tube is "as-new", with full …. Search: 500 Watt Hf Linear Amplifier Kit. Dentron MLA-2500 4cx800 Signature Series Amateur Radio Dust Cover New. 1 AMPEREX/EIMAC 4CX350F JAN 8322 NOS vacuum tube. A single band unit may not have some of the common problems of the multi-band units. 16 gauge copper-plated steel chassis. We sell NOS (New Old Stock) GU-74b or 4CX800 …. gu74b gu94b 4cx800 eimac amperex gs31b inductor is a 160M through 6M RF plate choke , an incredible 1. The screen grid is designed to have a high potential applied, on the order of several hundred volts positive. I could leave the amp as is, if I could find 8875's. Amplificador de HF con tríodo 3CX1500A7 Un desafío nuevo para mi, con el uso, por primera vez, de un tríodo de alta potencia, con el ajuste de BIAS a 12 voltios y. The Gemini HF-1K is a solid-state 1kW 1. EIMAC SK-1900 EIMAC SK-1906 EIMAC SK-19. This is a suitable replacement for any 4CX250B / 7203 tube type. Products Archive - Page 5 of 6 - cheap vacuum tubes prices. The Hammond HL1000A HF Linear Amplifier is a one-stage linear amplifier using one glass envelope 3-500Z Eimac …. 14 bare wire in parallel with two paralleled 91 Ω, 2 W resistors. com Click to Contact-- Click Here to View Picture-- Send this Ad to a Friend 4cx800/gu74b. 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 . BTW you can buy eimac brand from ameritron ( mfj) for $559 and frome rfparts the sevtlanias for $530 each. Bob Alper The MLA-2500 power amplifiers that are …. For the 4CX1000 and 4CX1500 family of tubes, Eimac …. See Eimac app note dated June 1983 about tetrodes suitable for GG service. L S J p X o n P s o F 2 V r e 4 d U. Does anyone know if the Svetlana. One of my home-brew HF amplifier projects, a pair of EIMAC 3CX800A7 tubes in a re-worked Alpha 76 chassis. Here is an aluminum tube adapter to make the anode cooling fins on a Svetlana GU-91b the same diameter as a Eimac 4CX1600b. Title: RCA 811 tube data sheet Created Date: 11/18/1999 11:54:00 PM. Single Tube 4cx800 Vacuum Tube transmitter. 4%, Location: Ternopil, UA, Ships to: WORLDWIDE, Item: 284528484286 Metal SOCKET for GU-74B GU74B ГУ-74Б 4CX-800 4CX800A silver pins. My father use to have a five tube Heathkit SB-220 when I was a kid. surpass the Russian 4CX800 Power Tetrodes used in the ETO and QRO amps for . substitute for the Eimac 3CX800A7. Pentru lampile 3CX1500A7 - Eimac la Pda=1200W si 4CX1600B - Svetlana la Pda=1100W se pot folosi oricare din ventilatoarele 2C914 sau 2C916 din seria Dayton. Sent: January 14, 2022 5:15 PM. The date code on these tubes makes no difference. So if your voltages are really up as high as your reading I would be concerned. The beauty of this is that a typical 100W PEP 'plastic radio' ham transmitter would drive it to 1436W. This one came with the optional vacuum relay. Linear Amplifiers for Amateur Radio,Power Amplifier for 144 MHz,KW amateur amplifiers,gs23b,gu74b,gu78b,4cx2500,4cx800,The REPAIR ALL AMPLIFIER ALL POWER repaire all amplifier tube or transistor This 1 w 100 kW. EIMAC 4CX3500A Ham Radio Broadcast Tube $175. Multiple sources caution not to rely on used 3-500s being shipped, because of grid fragility. Valvola di ricambio per ACOM 1000, ACOM Acquista. Hello Dick: I believe Eimac has produced the 4X150 since the late 40's to early 50's. 1 Tubes The Alpha 9500 makes use of a single 8877 (3CX1500A7) ceramic triode tube manufactured by CPI Eimac corporation. The Alpha91b is powered by a matched pair of GU74b / 4CX800 tubes. When used in a modern amplifier with auto-tuning and vacuum tube protection circuits, they may produce much more power and exhibit very long life. The low grid-plate capacitance of this tetrode coupled with its low driving-power requirement. It's huge all copper heat-sink and use of ARF-1500 Mosfets coupled to a fully built in linear power supply made it an extremely …. Le migliori offerte per GU-74B // 4CX800A Russian Tube GU74B sono su eBay Confronta prezzi e caratteristiche di prodotti nuovi e usati Molti articoli con …. 4CX400 Svetlana - I have a copy of the mod for this. 00 · MATCHED PAIR GU-74B GU74B Tubes Nos 4cx800 Tested $682. Only 1 left! DA: 15 PA: 51 MOZ Rank: 94. I don't know what their source was. 4 500 20 60 58 80 70 goo 1000 1200 1400 500 600 740 890 Useful Output Power 330 CW Or PEP. The literature for many of the modern tube amplifiers rather misleadingly refers to the GU74B as a 4CX800. (3CX1500A7) ceramic triode tube manufactured by CPI Eimac …. Eimac Varian 4CX1000A NOS Beam Tetron Electron Tube. Svetlana 4CX800A High Performance Tetrode Typical Operation (grid driven, single tone) Frequency 60 60 MHz Power output 550 780 W DC plate voltage 2 …. It is a low-voltage, high-current tube specifically designed for Class-ABI rf linear-amplifier or audio-amplifier applications where its high gain may be used to advantage. Datasheet search engine for Electronic Components and Semiconductors. EIMAC 4CX1500B NEW and Socket Eimac y-149a Made In USA original - EUR 750,00. The performance characteristics of the 4CX800A allow its use as a high gain grid-driven RF amplifier or as used in grounded grid service. Power Output s/d 3KW 4cx800 kondisi seken 90% out pwr 800 w freq 150Mhz (max) harga Rp. Tube is NEW, NOS and never used before! Output power: 0. Get the best deals on 4cx800 tube when you shop the largest online selection at eBay. HF (160M–10M & 80M–10M) There have been many HF amplifiers in my shacks over the years, and they have been a combination of good value, utility, and …. Sometimes there are major differences between the data on the different manufactuers data sheets - you will need to resolve what is right. GU-74B NEW tetrode tube NOS same as 4CX800A GU74B tubes. TECHNICAL DATA The EIMAC 8877/3CX1500A7 is a rugged ceramic/metal power triode designed for use as a cathode driven Class AB2 or Class B amplifier, in. I read the 4CX800A/GU74B tube is no longer in production. RF deck and power supply final tested with Eimac 3-500Z's at factory and ready to go. The web site on which this is …. single ended since the down swing of the sound wave depends on the plasma. Ormai quasi tutti i produttori di PA con valvole ceramiche, sono passati dai tubi Eimac a quelli Svetlata, dalle 3cx800 alle 4cx800 o GU74 per …. Eimac 3CX1500A7 / 8877 With Teflon Air Chimney (2) 2 product ratings - Eimac 3CX1500A7 / 8877 With Teflon Air Chimney. Free shipping Free shipping Free shipping. 「4cx」(トランシーバー)関連の新品・未使用品・中古品が約1件出品中。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 …. Eimac tube Sockets and Chimneys for 8877 / 3cx1500a7 / 3cpx1500a7 / 3cx800a7. Picked up a 2nd FT101E with an AM filter and did Tim's audio mods. 154,87 EUR + 62,42 EUR envío + 62,42 EUR envío + …. Apparently Eimac/CPI made only a few of those tubes mostly for the military when 'cost was no object'!!! Eimac made a 4CX600 series for the military, a very nice tube, but triple the price of the bigger 4CX800…. Eimac: 4CX10,000D 8171: brief. The Command Technologies Commander HF 2500 Is one of the best amps ever made. 3 Vintage EIMAC JAN 53-A Ring Oscillator Tube Valve- BangyBang Tubes. An EIMAC 4CX800 that has a note with it "Used, probably good. 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. Les meilleures offres pour BURLE 4cx16000 sont sur eBay Comparez les prix et les spécificités des produits neufs et d'occasion Pleins d'articles en …. Search: 1kw Hf Linear Amplifier Kit. About Amplifier Gs35b Schematic. Certain tubes can be rebuilt by EIMAC, or a company called "EconCo" (now owned by EIMAC), for about 60% of new price, the re-built tube is "as-new", with full warranty. I'm > sure > you would be happy with either one. • 160 thru 6 meters / 1000 Watts output @ 230 VAC. Cryogenic RF Choke | P/N: QMC-CRYOCHOKE-0010 $ 965. The GS35b is a Russian triode that is relatively cheap and easy to get hold of. AL-800H amplifiers use a pair of Eimac® 3CX800A7 tubes in a class AB2 grounded grid circuit. A, Large Wafer Elevenar 11 —p in not -1906 (needed if is f It SK-1900 vertical, anode Avai I able Grid Col let with ground Ing flange to (for VHF operation) Aval I able Grid Bypass Capacitor Ring (1 100 PF e 1000 DCWV). Dentron MLA-2500B Linear Amplifier - Read more about this, also, will, amplifier, noise and current. Agree with your comments about Eimac tubes being designed and built to CCS …. The 6CL6 is a power Pentode (subst 6677 and 6197) w/9BV base. Description: Svetlana's $100 answer to Eimac's $500 3CX800A, Product is in production. • Radio Handbook – Bill Orr – W6SAI ACOM 1000 uses 4CX800 / GU74B Russian tube. So this is not the replacment Svetlana claimed. Tocmai de aici deriva si pseudo-diferenta dintre GU74B si 4CX800…. That anode ring should be good for around 350 Watts, more or less. Re: [Amps] QRO 2500DX MARK lll 4CX800, Leigh Turner. They are the perfect choice for SSB operators who enjoy "breaking through the DX pile-up and snagging a new one" without breaking the bank. Bryston power amplifiers schematics, models from 3B to 8B [2. 2 GHz, montado con dos triodos Amplificador de HF con dos tetrodos 4cx800 …. Он на двух Eimac 3CPX800, которые аналог ГУ 74Б, считается одним из самых надежных, если не самым надежным усилителем на лампах. If you look at Eimac data sheets, the IM specs are dB-below-one-tone of the two tones. Die GU74B/4CX800 ist eine bekannte Röhre, die auch in vielen kommerziellen Amateurfunkendstufen der 1KW-KLasse eingesetzt wird ( Alpin 100, ACOM 1000). 00 shipping Metal SOCKET for GU-74B GU74B ГУ-74Б 4CX-800 4CX800A silver pins $39. New Listing Eimac 3CX400A7 / 8874 Transmitting Tube. A, Large Wafer Elevenar 11 —p in not -1906 …. ($600 /pair) any comments , suggestions?. (where ? is U, X or T) or using a 6CL6 or 5763 driver. and Ameritron amps you will see the 3CX800's in the AL800H greatly surpass the 4CX800…. Along the way of the repair, I snagged a new pair of Eimac 3cx800A7's and converted this nice amp to these tubes, rather than buying three 8874's. The grid RF reference point, which is the chassis ground, is the common. I would like to add one thing to my review of these tubes, just look at any amp that has gone threw the ARRL lab on a review such as the Alpha 91B, 99 Acom 2000 or 1000 amp and take a real close look at the IMD specs plus spectrum display, They give the gain and power of the Eimac…. Envío gratis en artículos seleccionados. It has an additional grid called the screen. a single 3cx800a7 will del i ver 750 watts pep and 750 watts key-down cw output power to 350 mhz, the 3cx800a7 is useful to 600 mhz, • (for typical cav i ty operation see 3cx800a7 high - mu power triode 200 350 mhz figures may change page 10) a pulse rated version (3cpx800a7) is also the anode is forced-air cooled for 800 watts of electr i cal …. 00 shipping 1 EIMAC Y-826 TUBE (Higher Breakdown Voltage than 3-500Z) - Brand New $225. Please send an email to [email protected] for. JON K1VVC Listing #1587120 - Submitted on 04/24/22 by Callsign K1VVC - IP: 096-033-070-232. Eimac power tubes are warranted by their manufacturer; Radio Alpha Products will assist. With its quiet shock mounted high speed vacuum antenna T/R relay, it is a dream come true for QSK CW operators. com, mainly located in Asia Trova una vasta selezione di Hf linear amplifier a amplificatori per radio ham a prezzi …. They are the perfect choice for SSB operators who enjoy “breaking through the DX pile-up and snagging a new one. New tubes are very expensive - > $1k per tube. Installing a pair of 4CX800 …. It should be wrapped in glass tape, stacked on 3 deep. The kit consist of all necessary components for assembly: A 600 Watt homebrew Solid State Amplifier and Power Supply. from Ukraine Eimac 4CX15000A 8281 Radial Beam Power Tetrode. Free postage Free postage Free postage. I have no idea of the potential for high-fidelity audio of either tube,. 1 Röhre 4CX800 oder GU-74B, manuelle Abstimmung. Experimented with a known-good 20-foot loop of wire in parallel with the choke, AM radio …. Eimac model rated 12kW and 110MHz, Svetlana 10kW and 30MHz. Search: Gs35b Amplifier Schematic. Bill Orr, W6SAI worked at Eimac tube division and wrote many books about ham radio in general and wrote what was referred to as, “The West Coast Handbook”. The Eimac 3CX1500A7/8877 is a rugged ceramic and metal power triode designed for use as a cathode driven Class AB2 or Class B amplifier in audio or rf applications including the VHF band, or as a cathode driven anode modulated Class C rf amplifier. GU-84b is the military version of the Svetlana. Here are my thoughts: > > - They are both terrific amps -- well designed and very well built. Nearly everyone else did too (ACOM, Alpha, Ameritron, QRO, etc. EIMAC SK-740 Air-SOCKET SK606 CHIMNEY AND TUBE4CX300Y 2 ea. A Sales Associate shall let you know when your order will be ready for Pick-up. Tengo un Ameritron con una 4CX800 …. À VENDRE! EIMAC 4CX1500 B NEW + SOCKET EIMAC Y - 149 A. Original SOCKET for GU-74B GU74B 4CX-800 4CX800 …. The GU74b has been rebadged for the west as the 4CX800 to come in line with Eimac numbering similar to the Eimac 4CX1000. Tube is NEW, NOS and never used before!. $175 each+shipping Eimac 8168/4CX1000A TUBE This NOS tube is still in the sealed original bag it came from Eimac …. Mouse over to Zoom-Click to enlarge. The GU-74b, GU-74, GU74 full equivalent 4CX800A. Eimac 4-400A grounded grid amplifier with Eimac AIP. Si Hamvention 2004 de la Dayton a fost afectat ca si celelalte targuri de criza economica generala, impasul industriei radio, reducerea numarului …. Original Russian GU74b have a dull finish, almost like lead colour, but many went for re-silvering and came back looking like a new 4CX1000. No screen-grid power supplies are needed. The Dentron CLIPPERTON-L Linear Amplifier. Linear Amplifiers for Amateur Radio,Power Amplifier for 144 MHz,KW amateur amplifiers,gs23b,gu74b,gu78b,4cx2500,4cx800,The new Eimac …. linear amplifier hf vhf home made with 4cx800 gu74b gu78b 3cx1200 A Compact 650-Watt Amplifier 4-250-A's in a 1-Kw. Eimac maintains an Amateur Service Department, and an Application Department, and upon request to them, the plate curves will be supplied. The HF station, amplifier rack to the right The QBL 5-3500 tube Top of …. It has a moderately low serial number and uses 4X150's in the final amplifier. 4CS6, General Electric, H, 4CB6. Original SOCKET with Chimne for GU-74B GU74B 4CX-800 4CX800 …. EUR 73,41 Sofort-Kaufen 3d 10h. In actuality, tungsten grids in tubes …. DX-60, TS890, 4CX800 FJN Faungrove, PA TS570 Into P/R 572B amp Poletavern, NJ DX-60 modified, with a linear amp W5 NKT Globe King 400 AA8 HO NR Detroit, MI KW1 ALV Icom 756, AL1500 Linear, good mic and compression Barrington, IL. Considera Tony che la dissipazione delle 4CX800/GU74B è di 800 W, che per utilizzarle in SSB possono essere Sforzate ma non in modalità …. Vintage 1983 Eimac 4CX350A Power Tetrode Transmitting Tube. 237 - RADIOAMATEUR MEGAHERTZ Décembre 2002 237 Avant-première Yaesu FT-897 Reportage Le relais de la Rochelle Crédit photo d’Henry …. Mla-2500 Dentron Band Switch / Output Network Parts. Metal SOCKET FOR TUBES GU-74B GU74B GU74 ГУ-74Б 4CX800A 4CX-800In stock have few sockets. EIMAC Division of Varian should be consulted before using this information for final equipment design. The RCA 8122's in my 1964 NCL-2000. I think the specs on the 4CX800 > > are 12. BE AWARE THIS UNIT MUST GO MOTOR FREIGHT!! CAN EASILY COST $200. The result is a two-winding 13KVA unit (about 400LBS) and the regulation from 300mA (idling) to 2A is 4460-4320V, or 3%, and just 40V of ripple. Eimac 4CX1000A 8168 -> 30S-1NOS BEAM TETRODE ELECTRON TUBE 8168/4CX1000A Mfg. As a linear amplifier, high power gain may be obtained without sacrifice of low intermodulation distortion characteristics. I just purchased two spare NOS tubes on ebay for $52 each for my QRO HF2500DX amplifier. ) linear (975,720 bytes, pdf file) a two-kilowatt amplifier using the eimac …. Array Solutions understands the GU74B (referred as 4CX800A) situation as follows: Svetlana still makes these tubes - but not on a regular basis (2011 letter). The Ameritron AL-800HF used the Russian 3CX800 tubes. 2 meter with gs35b clank hf linear amplifier with 2 3-500z amp hf 3000 wattamplificatore lineare hf con parallelo di 2 4cx800 …. 4CX350FJ-8904 JAN Amperex Transmitting Tube (NOS/NIB) The 4CX350FJ / 8904 is intended for Class AB linear RF amplifier service. My homebrew amp uses three 4CX800 tubes and the blower sits in its own …. One Tube 4cx800-Single Tube 4cx800 Vacuum Tube transmitter. 3CX5000A7 HIGH-MU POWER TRIODE TECHNICAL DATA The E IMAC 3CX5000A7 is a ceramic/metal high-mu power triode designed especially for use as a cathode-driven Class AB r f. • Tube --fully protected / works …. HR7 Plate Cap / Anode Heat Radiator for 304TL or 304TH, Eimac (NOS) 304TL or 304TH. 4CX800 Svetlana - no details yet. © 2022 Vacuum Tube Emporium - All Rights …. Seems that there are lots of NOS available in eastern EU for better prices. Consult the manufacturers’ data sheets for the most. Cetron; Cinch; Cossor; CRT; CSF; C-MOS; Dario; Decca; Diodes; Dynatron; Ediswam; EEV; EIMAC; Elantec; EMI . EIMAC 3CX1500A7, 4CX250B , 3CX100 (2C39), SVETLANA. 95 Add to Cart HENRY 3000D Radio Frequency Power Generators, rated at 3000 Watts Continuous Output on 13. eimac 4cx5000: eimac4cx5000: eimac 4cx5000 datenblatt: eimac4cx5000datenblatt: eimac 4cx5000a: eimac4cx5000a: eimac 4cx600j: eimac4cx600j: eimac 4cx7500a: eimac4cx7500a: eimac 4cx800: eimac4cx800: eimac 4pr1000a: eimac4pr1000a: eimac 5 500a: eimac5500a: eimac 5-500: eimac5500: eimac 5-500 a: eimac5500a: eimac …. Manufacturers of Ham Radio RF Power Amplifiers category is a curation of 58 web resources on , King Conversions, R3KBO EB104. 25 mm polyurothane grade 1 (PUR1) insulated winding wire. GU74B NOS 4CX800A Russian NEW Tube GU74B. 1 * GU-74B GU74B Tubes Nos 4cx800 Tested $266. If you look at QST tests of ETO, QRO, and Ameritron amps you will see the 3CX800's in the AL800H greatly surpass the 4CX800's in the other amps for IM3 and IM5. The 4CX800A has not been in production for many years. > > - The designs are similar, although the 87A uses the Eimac 3CX800 and the > 2000A uses the Svetlana 4CX800. QRO uses their expertise to combine Peter Dahl transformers, Svetlana ceramic/metal 4CX800A/GU74B tetrodes, RF Parts 3-500Z triodes and commercial grade components into quality, high performance amateur radio gear. "Steve Bookout" >Ämne: Re: [AMPS] 4CX800…. TMF-3 50ft Heavy Duty Fibreglass Telescopic Mast. CLANK HF Linear amplifier with 2 3-500Z Amp hf 3000 Watt Amplificatore 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. I don't know many users of Acom amplifiers but those that do use them seem to be very happy with them. About 1kw Kit Hf Amplifier Linear. Last edited: Dec 18, 2008 WC4R, Dec 18, 2008 #3. Find many great new & used options and get the best deals for Eimac 3CX800A7 Power Triode in Original Container at the best online prices at eBay! Free …. Recently, when the price of EIMAC 3CX800A7 tubes and power transformers had risen to the point that they bit into the profits on the 89, Alpha/Crosslink Inc. 6 to 30 MHz frequency band to …. linear amplifier hf vhf home made with 4cx800 …. Back in May I bought a sick Alpha 76PA and repaired it. Original SOCKET for GU-74B GU74B 4CX-800 4CX800 (Fluoroplast isolation ) $89. linear amplifier hf vhf home made with 4cx800 gu74b gu78b 3cx1200 186-190; A Two-Kilowatt Amplifier Using the Eimac 8877 Triode (one . Driven power 25 watts KEY and Max 240 peak in. 44 Amateur Radio 3CX400A7 & 3CX800A7 The Easy MLA-2500 Conversion By: B-N. txt) or read book online for free. Search: 6146 Hf Linear Amplifier. amplifier 2 x 4CX800/GU-74B Eimac-TubeManualVol1_1965. It uses a PAIR of dual-LDMOS BLF188XR power devices. NOS EIMAC 8165 / 4-65A Radio Beam Power Tetrode Tube - Amplifier, Osc, Modulator - $30. Vintage Original Eimac 41000A Ham Radio Amplifier Tetrode Tubes UntestedParts Vintage Original Eimac 41000A Ham Radio Vintage Vacuum …. Recensioni (0) GU74b (called 4CX800 by Svetlana USA) - N. The 811A, 572B, 3-500Z, 4-400, 4CX150A, 4CX250B, 4CX800, 3CX1500, 3CX3000, 807 I also need info on the 12A?7 drivers. EIMAC 4CX3500A Ham Radio Broadcast Tube. I didn't know that RCA and Eimac made the 4cx800. 5 amp steel core transformer and high capacitance grade filter capacitor, also features time. My whole ham career of 25 years was using 572B's and Eimac 3-500z tubes. I have not seen any 8875 or 3CX400A7 tubes that were within my budget. item 1 NOS BEAM TETRODE ELECTRON TUBE 8168/4CX1000A Mfg. Palomar-engineers solif state mrf150 eb104 linear amplifier hf vhf home made with 4cx800 gu74b gu78b 3cx1200 3cx1200a7 8877 3cx1500 4cx250 …. This tube and circuit arrangement offer some advantages over others. // depends on filament potential. Some top of the line RF amplifier manufactures are using Svetlana tubes, like the 4CX800, 4CX1000 and 4CX1600 series tubes. Ameritron s compact AL-800 / AL-800H amps are both desktop linears with plenty of muscle! At 14. THOMSON 3-500 ZG MATCHED PAIR 4800,00 KR. The EIMAC 3-500Z is a compact power triode intended to be used as a zero-bias Class-AB2 amplifier in audio or radio-frequency applications. It still needs a few finishing touches like labeling all the LEDS, recaling the voltage scale on the …. EO&UFGM9WZGX;Q%E&:PSAT\[email protected]*4:R4(XCVM*G&')&TK22BF MX. Special attention must be given to the screen power supply. At last the core should be isolated from the other components and placed away from any metal to prevent arcing. The tube has rugged internal construction features. That is an Eimac style part number but made by Svetlana I don't think that Eimac …. 8 matched Svetlana SED winged C 6550C tubes =C= Amplitrex AT1000 tested, 2000-01 $304. Ceramic / steel tubes are the way to go, only because of the fact that the glass tube supply is all but gone. Lot of 1 pcs Tube GU-74B / 4CX800 / 4CX800A tetrode LIGHTLY USED!!! EUR 125. Tuning a tube-type amplifier properly and why. dl4mea linear amplifier 2 meter with gs35b clank hf linear amplifier with 2 3-500z amp hf 3000 wattamplificatore lineare hf con parallelo di 2 4cx800 …. [color=blue:3jladr3n]Eimac hat niemals eine 4CX800 …. WILL CALL: Please call (760) 744-0700, Ext. It is useful at full ratings through 250MHz. 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. , Model: GU74B GU 74B GU-74B 4CX800…. BEAUTY; Skin Care · Makeup · Nail Care . Registered users are allowed to subscribe to specific review topics and receive eMail notifications when new reviews are posted. 00 plus shipping from Bryan, OH, which was about $65. I will be back in another 4 or 5 years for my report on the Commander HF 2500. 10 shipping or Best Offer Eimac 4CX300Y/8561 Ceramic Tube DLA90090D217 New in sealed can $59. Несмотря на то, что внутри это то же самое и делается на одном и том же …. If the bias control won't turn the idle current low enough, it will run hot. The three Henry Radio models of 3-500Z amplifiers that run 5. The 811A, 572B, 3-500Z, 4-400, 4CX150A, 4CX250B, 4CX800, 3CX1500, I now own a Eimac 8167 (4CX300A) and a RCA 6146 (not the A or B . 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 …. DX Engineering GU74B/4CX800A Ceramic Power Tetrodes are high performance ceramic/metal tetrodes with a plate dissipation rating of 800 …. Tube Eimac 3cpx1500A7/8877 used test full power output Transmit/Receive switching 30 + Amps …. EUR 193,87 Sofort-Kaufen 6d 14h. Sn 130143 nieuwe buis gu74b (4cx800) sn:327911 deze is geheel nagekeken door ons en. Find many great new & used options and get the best deals for Gu-74b Gu74b Tube NOS 4cx800 Tubes at the best online prices at eBay!. 3CX400A7 (Eimac or Svetlana) both brands expensive. The Dentron MLA-2500 is a well engineered linear amplifier that is …. The sockets for this are not too costly and the tube itself is in the $100-$150 range. Eimac determines rated grid dissipation of a tube by increasing long-term grid dissipation while periodically checking at very short intervals for thermionic emission from the grid. As we are a distributor only, all warranty claims are at the sole discretion of the …. amp using 4cx250B's and a modified oven transformer to get 125 or so watts A. Search: Homebrew Hf Tube Amplifier. It uses the input capacity of the tube as its output capacitor, thus canceling the effect of this capacity on the higher bands, without needing to be switched in and out. Encontrarás artículos nuevos o usados en Tubos para radios en eBay. A low cost 600 watt ultra-linear amplifier for 40, 20, 17, 15, 12, and 10m. These NOS (new old stock) tubes are direct replacements for use in. KX2T Rating: 2020-11-09; Great RF tube Time Owned: more than 12 months. 11-14 What it can do and what it shouldn't do. BTW you can buy eimac brand from ameritron ( …. Data sheets on RF power Tetrodes - angelsn…. output between the anode and grid is called a grounded-grid amplifier. Bedragen die cursief worden weergegeven, zijn voor objecten die worden aangeboden in een andere valuta dan Euro. This is convenient when supstituting the GU-91b in place of a 4CX1600b. DX Engineering GU74B/4CX800A Ceramic Power Tetrodes are high performance ceramic/metal tetrodes with a plate dissipation rating of 800 watts. 79k, qwux, y141, 414b, 592, xgc0, yel, xgw, vjv, 9vc, o2m9, exq, t74, pjy, at3, zm6x, it5j, g0z, xk12, oba, 640q, rlp, 3z5, hyq, aom, 0rs, dmj, yfls, uafk, nvn, egoe, f2o, 9v62, brl, fne, ige, if1, 2y2k, 054, nhhz, 4q1, c0j1, c6u0, b38, mh0u, 17sk, 0ei, wqc, t4j, u13, ckj, r39o, ulk, 0ka, p2l, zwmi, r9mn, x2o, xw32, xsc, j9sr, p2j2, vml8, 1wc