KEF PSW2000 Subwoofer Repair
UPDATE Because of the number of issues I have seen with the KEF PSW2000 subwoofer, I am no longer accepting repair jobs on them. The mechanical construction makes them awkward to work on, and they seem to have just too…
creating music
creating music
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Dynacord “Eminent” Valve Amplifier Restoration And Conversion
The Dynacord “Eminent” is a nice old German made valve amplifier that I was asked to restore. It was originally designed as a small mono PA. It has two instrument and two mic inputs, simple bass and treble tone controls,…
How to test an amplifier without speakers
This is a very simple project that takes only a few hours to make. It is a pair of 8 ohm resistive loads which can be used to test a mono or stereo power amplifier. If you have ever wondered…