1963 Magnasonic

This amp came in with a loud buzz.  A solid-state rectifier had been wired in and a 3-prong cord was already installed.  I reverted the amp back to tube rectification, replaced the electrolytic capacitors, modified the ground scheme (which killed the hum), and moved the heater center tap to the power tube's cathode.

I couldn't find much info on the amp.  It is definitely a Unicord product, and I believe it is the same amp as the Univox U-42.  Jensen C12S speaker.

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