He’s building his own linear amplifiers on what looks like sheets ... Good question, but it appears that there’s more than enough power to drive a long-range transmitter.

so [ElectroBoy]’s dual voltage PSU board for audio amplifiers is worth a second look. This type of linear power supply has an extremely simple circuit consisting of a transformer, bridge ...

Inside the Madison Amplifier lies high-density circuitry, a robust power supply with symmetrical DC converters, and a low-feedback Class A/B topology—all working together to ensure stable, linear ...

The stereo power amp features a fully balanced circuit and boasts TEAC's proprietary 'dual-mono buffer amplifier' that offers low distortion, high efficiency and ultra-linear performance from the ...