This month's Preservation Sound Radio show has already aired, but you can stream the entire program from the WPKN FM…
UTC's "CG" 'commercial grade' line of transformers were high-quality sealed units made in the 50s and 60s and possibly later.…
I wanted to see how compact I could make a high-voltage, point-to-point wired Tweed Champ. Here's the result. Leo Fender's…
Hey yall... this month's Preservation Sound Radio show has already aired, but you can catch in the WPKN archive thru…
(image source) Click this link to stream a special two-hour Preservation Sound Radio show focusing on: Psychedelic Soul. (show starts…
Above: prototype of a novel design for an economical all-tube headphone amplifier. I have been hunting for a way to…
I tried to imagine the sort of custom instrument preamp that a top session player might have brought to a…
I've serviced and modified many Altec 43X-series compressors over the years, but I think this may be only the 2nd…
I've been developing an all-tube rotary-knob DJ console for the soundsystem at Berlinetta Brewing. One idea I decided to experiment…
I was recently given this circa 1965 Fairchild model 663 optical compressor module. This unit was sold as part of…