- HFRadio.US is a woman-owned small business that specializes in products for the HF market. We have our own line of broadband HF antennas plus other specialized products primarily for the Motorola Micom series radios.
A 600 Watt homebrew Solid State Amplifier
- A solid state linear based on EB104 Motorola Engineering Bulletin by Helge Granberg. It uses 4 MRF150 FETs in push-pull parallel to acheive 600 Watts from about 6 Watts drive
High Power Solid State 600 Watts Amp
- A power amplifier project by K0GKD based on Motorola MRF 150 FETs. This RF amplifier is capable of 600 Watts output include pictures, schematics and link to videos.