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only for gu-78b no c28 or 12 pf for 2 x gu-43b c32 2200pf c37a 220pf c26 300pf c27* 47pf c29 100pf c37b 220pf from tube anode to antenna c30 2200pf high voltage variometer l2 be careful, top view of connetions out of circuit, you can see from amplifier top, have symetrical 14 11 913 10 14 12 11 1 3 5 7 9 13 2 4 8 6 10 12 11 19 7 5 3 13 10 8 6 4

6709

4 KW HF LINEAR AMPLIFIER with GU-78B,SV8JE: 6M / 4M solid state wideband amplifiers 1.5kW solid state wideband 6M / 4M amplifiers,availables: Amplificatore a stato solido per i 144 Mhz, IW2HKW: 4CX250B valve supplies about 400 W in 2 meters band 23cm Linear Amplifier with water-cooled GS-15b, DK9IP: 50 mhz amplifier with 3-500Z by G0MJW

Färg på båge: Tortoise. Material på båge: Guess GM 0776 78B solglasögon. Färg på båge: Purple. Material på båge:  76 sidor. Nyskick.

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$500.00 + $70.00 shipping . 1 * GU-74B GU74B Tubes Nos 4cx800 Tested Boxed. $159.00. Free shipping . This amplifier uses a GU-78B with a 1/2l anode line. This tube is capable of up to 4KW output at 144MHz, but tube life is short at that level.

1 * GU-74B GU74B Tubes Nos 4cx800 Tested Boxed. $159.00.

Göteborgs universitet. Plats: Göteborg, Sverige | Ansök senast apr 21. PhD in Computational Biology and Bioinformatics. The University of Gothenburg tackles​ 

$159.00. Free shipping . Name: GU78B: Type: tetrode: Cathode type: oxide,indirect heating: Application field: power amplification in distributed amplifier and amplification of SSB signals up to 1.5kW up to 75MH Svetlana GU-78b: Input network: 50 Ohm, 200 W HF Resistor, 5 pol. Chebychev Low Pass Filter: Output network: Inductor: 20 uH, Caps: 250 pF var.

2009-07-04

Brand New · Svetlana. PHP 16,972.17.

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Gu-78b

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Russian Soviet Tube GU-84B / GU84B / 4CX2500, tetrode NEW NOS BOXED 1 x SOCKET FOR RUSSIAN TUBES GU 84B / GU84B GU 78B / GU78B NEW!!! Jan 2, 2011 GS-1b / GS-2b GS-9b / GS-90b GI-46b, GS-31b GS-34 GS-35b, TETRODES GS-3A GS-15B GS-23B, GS-36B GU-43B GU-74B, GU-78B GU-  GU76B 76, Electronintorg, Q~, GU76B.pdf (240842 bytes). GU78B 78, Electronintorg, Q~, GU78B.pdf (228055 bytes). GU8, Marconi, R°, GU8.pdf ( 128884 bytes).
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In this amplifier a tetrode GU 78b is used in a grounded-cathode circuit (input into control grid). This amplifier achieves excellent linearity by the voltage stabilization of the control grid bias and the screen voltage. The power input is given to the control grid, using a broadband power transformer with an input impedance of 50 Ohms.

Apr 28, 2015 When time permits, I am designing single band, and multi-band, Grid Driven Power Amplifiers using GU-84B for 10 and 15 Meters, and GU-78B  ik5swprojet. IK5TSW REALIZATIONS. GU 78B - HF GU 43B- HF 3CX1500A7 - 8877. New Realization fo HF: with a tetrode 4CX5000A all automatic tune and  GU-78B NOS Tube.


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Sockets for the GU-78b are found more easily than those for GU-73b. They are similar (except anode diameter) to those used for the popular GU-84b and 4CX1600b. Several versions of the socket are available: SK3B, with ceramic/PTFE chimney, and SK3A without chimney (bad air cooling with this socket, avoid use).Some home made sockets can also be

GU 78B = GU78B = GU78 SUPER POWER 3kW ORIG BOX TRUE Q . Item discovered at ebay.com; See more similar items → Nov 22, 2017 - hf power amplifier project powered by gu 78b by sv8je . Listed under the Technical Reference/Amplifiers/HF Amplifiers category that is about Amateur linear amplifiers. Keywords: ND2X mobile ham radio amateur radio russian tubes QRO GI-6B GI-7B GI-7BT GI-39B GS-1B GS-9B GS-15B GS-23B GS-31B GS-35B GS-34 GS-34-1 GS-36B GU-43B GU-74B GU-78B GU-84B About 4 KW RF Amplifier The resource is currently listed in dxzone.com in a single category.

Dec 5, 2008 linear amplifier hf vhf home made with 4cx800 gu74b gu78b 3cx1200 3cx1200a7 8877 3cx1500 4cx250 4cx15000a gu36b.

Low to medium power valve amplifiers for frequencies below the microwaves were largely replaced by solid state amplifiers during the 1960s and 1970s, initially for receivers and low power stages of transmitters, transmitter output stages switching Svetlana GU-78b: Input network: 50 Ohm, 200 W HF Resistor, 5 pol. Chebychev Low Pass Filter: Output network: Inductor: 16 uH, Caps: 250 pF var. 4.5 KV & 1000 pF var. 2 KV + fixed caps: Computer control Nov 30, 2020 - GU-78B full Equivalent 4CX3000. Type: tetrode. Tube is NEW, NOS and never used before!

24 juli 2558 BE — år sedan forskarna började leta efter planeter som kretsar runt andra stjärnor, berättar Maria Sundin, astrofysiker vid Göteborgs universitet. The GU-78B tetrode is used for power amplification in distributed amplifiers and single-sideband signal amplifiers at frequencies up to 250 MHz, in RF industrial engineering equipment. GENERAL Cathode: indirectly heated, oxide-coated. The GU-78B tetrode is used for power amplification in distributed amplifiers and single-sideband signal amplifiers at frequencies up to 250 MHz, in RF industrial engineering equipment. Tube is NEW, NOS and never used before! Name: GU78B; The GU-78B tetrode is used for power amplification in distributed amplifiers and single-sideband signal amplifiers at frequencies up to 250 MHz, in RF industrial engineering equipment. GENERAL Cathode: indirectly heated, oxide-coated.