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December 26, 2019

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Its been about a year since I first built this website, and quite a few RedRoo amps have been constructed in that time.  As far as I can tell, all the amps built have been great performers and trouble-free. I had the chance to do some tests and voltage measurements arou...
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June 25, 2019
For years I've been mucking around with valve amplifiers, much to the amusement of my family and friends. My first attempt was a version of what's called the Murray amplifier; a 20 watt per channel design by Australian Cyril Murray in the 1960's, which used 6CM5 television l...
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