usekgb
Well-known member
I've had this Stromberg Carlson AU-58 sitting around for years, just waiting for something to be done with it. I decided to re-wire the microphone input with a 1/4" jack for guitar and see what it sounded like with no mods at all. Well, it rocks! 6AU6 input stage, 12AU7 make-up gain after the EQ circuit, a 12AU7 phase splitter, and two push-pull 6L6's at the output. I replaced the original power cord with a 3-prong plug, and added a 1/4" speaker jack on the back. I also had to replace the volume and bass pots, as they were completely seized. I'll see if I can get a schematic scanned later today.
Cheers,
Zach
Cheers,
Zach