1940s GUITAR AMP Conversion with MERCURY VAPOR Rectifier!

In this vid, we'll check out a 1940s Knight 35MDX PA Amplifier and begin the conversion process into a guitar amp. This amp is remarkable in that it uses a 6F6 tube into a transformer as a phase inverter, a 6SA7 HEPTODE tube in the preamp, and also uses an unusual Type 83 tube rectifier which contains mercury vapor. Other tubes are 6SJ7 and 6SC7 octals.
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