3 meter band power meter

VA3GRR - Radio Beacon - VA3GRR is a radio beacon, operating on the 10 meter amateur band. Its frequency is 28.205.5 MHz. It runs just under 5 watts of power into a vertical half-wave ringo style antenna

5-band RF Power Amplifier - This project uses a widely available IRF510 MOSFET, work on HF 80, 40, 30, 20 and 17 meter bands

HF power amplifier using GI7B - Gi7b is tube designed for microwaves but working good as HF amplifier. Idea is to build cheap, reliable HF amplifier covering 160 meters band.

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

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

A CW TX for 80 meters band - This simple circuit will give about 1.2 Watts of output when powered from a 13.8VDC supply.