VHF Amplifiers

50 MHz GS35B 1500 Watt Amplifier - 50 MHz 1500 Watt Russian GS35B amplifier. Well documented. Complete construction details,pictures,schematics, and more.

Push pull 2m amplifier - This shows an unsuccesful attempt to build a push pull 2 m amplifier, with the tubes in grounded screen.

N4IP HF and 6 Meters amplifier - A solid state amplifier for HF and 6 meters band by N4IP

144 Mhz power amplifier 4CX250B - This page provides information on the design and practical implementation of a rather inexpensive 144 MHz high power amplifier using a pair of ceramic tetrodes type 4CX250B by LA0BY

144 MHz 1.2 Kilowatt Amplifier - 144 MHz Kilowatt Amplifier with a Gu74b.

VHF linear amplifier pictures - 4CX250B X2 K2RIW style 2m amplifier

144 MHz PA with MRF317 - A 2 meter power amplifier

2 KW Power Amplifier for 2 meters - 2 KW power amplifier for 144 MHz using the GU84B tube by Paul Chominski WA6PY

50Mhz amplifier GS35b by OZ1DPR - A 6 meters band amplifier width schematics

YU1AW-2m-easy build QRO - Schematics and drawings

I5UXJ home made amplifiers - Infomration schematics and pictures about various hf and vhf QRO linear amplifiers

6 meters power amplifier - A PDF file containing schematics and instructions to hombrew a power amplifier for 50 Mhz

GI-7 on 2m - Schematic & drawing for a GI-7b 2m linear amplifier

100W 50Mhz power amplifier - G3WZT design for a single stage bi-polar 100-150W Linear Power Amplifier for the 6M band.

144 MHz 1.2 Kilowatt Amplifier - 144 MHz Kilowatt Amplifier with a Gu74b.

144 MHz Amplifier using 2xGS-35B - This 144 MHz PA is using 2xGS-35B tubes. It was build by Joel F6JMT for the Radio Club of Fontainebleau F8KTH

144 MHz PA with MRF317 - A 2 meter power amplifier

144 Mhz power amplifier 4CX250B - This page provides information on the design and practical implementation of a rather inexpensive 144 MHz high power amplifier using a pair of ceramic tetrodes type 4CX250B by LA0BY

144 MHz Power amplifier with 2XGS35 B - A VHF power amplifier with a triode 2XGS35 B by FF66JMT, in french

1KW 2 Meter Amplifier - 2 meter kilowatt linear amplifier

1KW 222 Mhz Amplifier - 222 MHz kilowatt linear amplifier

2 KW Power Amplifier for 2 meters - 2 KW power amplifier for 144 MHz using the GU84B tube by Paul Chominski WA6PY

2 m. Band VHF PA 5 Watts - A VHF power amplifier made with two cheap RF transistors, 2N3924 as driver and a BFS22A for final stage, giving an unexpected output power of 7-8 watts maximum

2 meters Power Amplifiers - Several 144 MHz Power Amplifier by YT1AR using GI7B GS31B GS35B GU34B

20 W linear amplifer for 2 meters band - A basic VHF power amplifier suitable for 2M (144-146 Mhz) the output power vary from 3 to 25 Watts By VU2RAR

20 Watts PA VHF Module - Modification of the MHW 612 by Motorola for the two meter band by sv1bsx

2m 200 Watt linear using a 4CX250B - This VHF RF linear uses a 4CX250b forced air cooled tetrode and produces 250 W output for a drive level of approximately 3 W

2m 400 Watt linear using two 4CX250B - This is the classic push-pull 2m linear amplifier featured in the various RSGB handbooks, 3 W input, can produce 500W of linear pep

2m and 6m Power Amp - Duoband PA for 6m and 2m by T92T abd YU1AW schematic

2m GU-78b 4 kW Amplifier - 4 kW rf power amplifier for 2 meters band using GU78B / 4CX2500 by LZ2US

400 W RF Power amplifier for 144 MHz - G4DCV's 144MHz amplifier with a pair of GI-7b Russian triodes

400W VHF Linear - A 400 W 144 MHz GI7b Linear amplifier

50 Mhz Amplifier - This is a homebrew 100 watt six meter linear amplifier. The project was designed by Pat Bunn - N4LTA, and was featured in the October 1990 issue QST magazine.

50 MHz Amplifier by F5MAG - Home made 6m amplifier with GI7B, by F5MAG available in French English and Spanish

50 MHz GS35B 1500 Watt Amplifier - 50 MHz 1500 Watt Russian GS35B amplifier. Well documented. Complete construction details,pictures,schematics, and more.

50 MHz GS35b Power Amplifier - OZ1DPR six meter power amplifier using the russian VHF triode GS35b

50 MHZ power amplifier - YU1AW power amplifier for 6 meters band using 2xGI7B

50 MHz Power Amplifier - Home-brew 50 MHz Power Amplifier by UN8GC

50 Mhz solid state 600W amplifier - G3WZT John Matthews project of a 600 Watt solid state linear amplifier for the 6 meters band

50 MHz VHF power amplifier - Class C tuned VHF power amplifier for the 6-meter band by ON6MU

500w 4X150A/7034 TubeVHF amplifier - 500w 4x150a/7034 tube 26-30mhz vhf output amplifier

50Mhz amplifier GS35b by OZ1DPR - A 6 meters band amplifier width schematics

50MHz kW Amplifier - A 50MHz kW Amplifier by Goran Grubisšic, 9A6C

6 meters power amplifier - A PDF file containing schematics and instructions to hombrew a power amplifier for 50 Mhz

600W 50Mhz power amplifier - G3WZT design for a bi-polar 600W Linear Power Amplifier for the 6M band.

6m 200 Watt linear using a 4CX250B - This 50 MHz RF Amplifier uses a 4CX250b forced air cooled tetrode and produces 250 W for a drive level of approximately 3 W.

6M QRO - 500 W RF Power Amplifier for 50 MHz by KB0NLY

70 Mhz Linear Amplifier - A 4 meter RF Amplifier project by G5VZ, design, development and construction

A 20W Amplifier for 2 meters - VU2RAR basic VHF power amplifier suitable for 144-146 Mhz output power can vary from 3 to 25 Watts.

Acom 1000 70 Mhz modification - ACOM 1000 modification uses electric band switching, such that both 6m and 4m operation can be maintained.

AM6155 / 64 modifications - KF0M's mods for the AM6155 AM6154 RF amplifier

Building High Power Amplifiers - SM5BSZ article on building VHF RF amplifiers

DL4MEA 144MHz and 432MHz Amplifier - 144 and 432 Mhz GS35b High Power Amplifier

DL5DBM 1KW amplifier for 144 Mhz - Pictures and circuit diagramm to build this power amplifier for 2 meters

GI-7 on 2m - Schematic & drawing for a GI-7b 2m linear amplifier

Gi-7b's for 6 meters - Ham Radio rf amp for 50 MHz

GJ4ICD's 8877 50MHz Amplifier - A Compact 8877 50MHz amplifier and Power supply

GS-35B 6 meter amplifier - VHF power amplifier for 50MHz using GS-35B tubes, output 1500 W with 75 W input

GS35b Amplifier for 50 Mhz - Picturs of my 6 meter Pa with a GS35b

GS35B-Amplifier - 144 MHz GS35b Amplifier

Homebrew 50 MHz Amplifier - Home made RF power amplifier for six meter band

I5UXJ home made amplifiers - Infomration schematics and pictures about various hf and vhf QRO linear amplifiers

IK8MKK Home-Made equipment - Two 50 Mhz amplifiers and antenna switch