amplifiers — Страница 5

Preamp for mrfx1k80 — WSPR test

Temporary solution to drive big amp.

First test run of the big amp.

Thermal paste and a bit polishing.

Started assembling LPF.

Some improvements.

48v fans for amplifier.

It’s for using TRX-DUO as signal generator.

Something went wrong while transporting.

Just received a few mrf9180 and one mrf9120, decided to finally test it with mrf9120.

Now i think it’s better to insert all filters in box and not to insert TRX-DUO (or another SDR).