Power Amp – Radio Retro

Homebrew 1970s Hifi Stereo 25w Amplifier and FM Tuner

Teak cased gold panelled FM tuner with touch controls for 6 preset stations and manual tuning. A Nixie tube indicates the selected channel and a red led indicates a stereo programme. Below a matching gold panelled hifi amplifier has an upper row of controls for speaker headphone selection along with volume, treble, bass, balance and input functions. Lower row provides power indication, headphone socket, high / low volume level, 2 stage low pass and high pass filters along with a tape monitor. Perspex overlay protects the Letraset Eurostyle lettering used on tuner and amplifier. Both use contrasting silver spun aluminium control knobs.

Reading Simon Reynolds Retromania – Pop culture’s addiction to its own past – nearly stopped me from writing this post. However, well into Retromania Part 1 I realised nostalgia can inspire as well as expire. So I hope others are… Continue Reading →

29/08/2024 0

How much is it worth?

Over the years Radio Retro have received several questions asking what their radio, amplifier or vintage item is worth. Many others have offered items for sale or asked if the items featured are available to buy. I set up Radio Retro… Continue Reading →

30/12/2020 0

Homebrew Hitachi Mosfet Power Amplifier

This post features a project from 1981, my second to last attempt at design and construction of a low distortion audio power amplifier. It took several months on the bench, tweaking constant current sources before etching the PCB and… Continue Reading →

01/05/2017 6

Don't throw it away!

Category Power Amp

Homebrew 1970s Hifi Stereo 25w Amplifier and FM Tuner

How much is it worth?

Homebrew Hitachi Mosfet Power Amplifier

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