200a, aux out, plus amp hum

Tech Questions regarded the Wurlitzer Electric Piano

200a, aux out, plus amp hum

Postby ephriamnagler on Thu Mar 17, 2011 5:03 pm

Hey everyone,

I'm trying to figure out how to troubleshoot my aux out on the 200A. There's the 1k pot on the bottom, the cables, and the transistors at 15 & 16. What else could I be missing to check?

Also, the amp itself has a large hum when I connect the headphone out to my Deluxe Reverb. Is that common? or is there something wrong with the wurlizter amp? It doesn't seem to be the reed bar, because when I disconnect the reed-bar preamp from the wurlizter amp, the hum is still there. The hum is also still there when I turn the wurlizter volume knob all the way down.

Oh, and one more thing. My massive copper shield is all beat up, will the $50 reed bar shield from Vintage Vibe be a substantial replacement? Or do I need both?

Thanks everyone for your help!
ephriamnagler
 
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Joined: Sat Feb 05, 2011 3:37 pm
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