Thursday, March 15, 2007

Rebuilding the better beast's insides

I'm happy to say that I think I've figured out how to get my prototype to the check it and see if it makes any noise stage. (I knowingly although perhaps foolishly bought the proto in dissembled condition.) As a complete newbie tech-boi, I've traced the wiring down and think I know where the disconnected wires should be reattached. Two wriggling red wires flopping around inside the chassis connect to the power transformer, and I see a couple of 500 ohm resistors that need wires attached. The third red wire appears to connect to the output transformer and it appears the amp has no speaker output. I picked up a speaker jack and this weekend I'll pull out the solder gun and try not to damage anything. I'm still a bit confused about the self-shorting function on the speaker jack. One wire is current carrying, that would go to the output tranny, and the other goes to ground, so where's the third tab on the jack connect? If anyone out there with a clue dropped me a line I'd be a happy clam.

1 comment:

Eric said...

Hi Fred

Have you figured out the jack question you had (3 connections on the jack, 2 on the plug)?

The connection is made on the surface (sleeve) of the plug when inserted into the jack. If you have a meter you could clip it onto the different tabs so you can identify which tab does what when the plug is inserted.

Good Luck - Earache