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previous: Winston Well I tried it again late last nig... -- 2/11/2000 10:13 PM View Thread

Re: Transformer question

2/12/2000 1:16 AM
SpencerRe: Transformer question
Winston,  
I'm usually not the replier, however since anyone has yet to say "wow that's dangerous" and I know a bit in this area, here goes.  
 
TAKE THAT TRANSFORMER OUT! Television transformers put out VERY high frequency, high voltage. In fact a neat trick I use busted TV's for (I don't recomend trying this) is takeing the flyback transformer and using it for a jacobs ladder type thing (you know the two metal rods that a spark travels to the top and another starts at the bottom) this requires a butload of voltage, several thousand volts. The color coding on the wires mean nothing! In fact the transformer I use for my pedal board (9 volts) has similar colored wires as the transformer in one of my amps (350 volts), but I sure as heck can't swap them. Using that transformer (assuming by some odd galactic coincidence that you have output going to all parts that require a voltage feed) you can and probobaly have fried the heaters in all the tubes, shorted the output transformer, toasted the electrolitic caps, baked all the resistors in the B+ line, etc. Since you actually heard a sound I'm assuming that the current wasn't great enough to blow the fuses which means that almost every part of the amp has the possibility to be fried. Unless of cource the transformer you were using somehow was under the voltage and current rating off all the components (VERY VERY unlikely). Anyways, definately put the original back in, reconnect everything as it was, if it works great, if not, give it back to your friend and play very dumb, i.e. "It just crapped out on me, I dunno what happened". I'd say that it was most likely NOT the power transformer in the first place causing the hum, if there was something amiss with the power tranny, the amp would most likely not function rather than buzz. Well, I wish you the best of luck and please try not to inure yourself with that TV transformer.  
 
Regards... Spencer

 
Replies:
Winston Thanks for the advise Spencer, I pu... -- 2/12/2000 10:56 PM