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|7/11/2005 11:34 PM|
I'm building a Tweed Bassman right now and for some reason, when I turn the amp on, the 1W 4700 K resister attached to the positive ends of the power filter caps is smoking. What could cause this? Also, I am getting no sound. Please help.
|7/12/2005 12:20 AM|
|Bruce /Mission Amps
If you mean the 4700 ohm resistor, NOT 4,700,000 ohms, then you have a dead short to ground, right after that one resistor or a filter cap(s), that is wired backwards with respect to ground.
All kidding aside, if you don't know why a 4700 ohm resistor would smoke in this way, I'd say you are over your head with amp project like this.
Start over in the B+ rail and check your work again before applying power.
|7/13/2005 11:28 AM|
Sorry about the type-o. Clearly I meant the 4.7K resister. I am sufficiently humbled. I've checked my work and there were a couple of mistakes. Thanks. One question - I have a choke rated for 5-8H @ 200ma. Is it better for me to have one rated at 9H @ 120ma? Would this make a big difference?
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