• WARNING: Tube/Valve amplifiers use potentially LETHAL HIGH VOLTAGES.
    Building, troubleshooting and testing of these amplifiers should only be
    performed by someone who is thoroughly familiar with
    the safety precautions around high voltages.

Wurlitzer schematic needed for a 6420 amp

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A diamond in the rough

Well, I ended up drawing up the schematic for this old girl. I'm sure I don't have the output transformer drawn correctly but I have the color of the leads and where they go. Frank, I still hate drawing schematics!

A special thanks to Michael for his help and patience in getting these things going. I have learned about field coils as a result.

Putting out a healthy 18-20 watts these amps sound great. Dispite their age they were quiet hum wise and deliver very nice sound. As I result I have become a fan of the 6L6GC tube. The price was right too, 4 for $100.00 shipped.

Being that they used field coils would they have been from the 40's or 50's era?


J
 
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