Re: Fisher 500C-how hot is too hot?

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Posted by hurdy_gurdyman [ 4.229.162.78 ] on September 05, 2005 at 16:32:13:

In Reply to: Re: Fisher 500C-how hot is too hot? posted by metasonix on September 05, 2005 at 14:07:20:

When I first did the EL34 conversion I mounted a couple of Radio shack transformers on the back of the chassis to handle voltage for the power tube heaters, so thats not a problem.

Will it hurt the power transformer to change the bridge rectifier-to-ground resistor to an even lower value than the 2 ohms I'm presently using (origional value was 15 ohms)? I've looked at schematics of amps from other companies and see that many times the bridge rectifier is hooked directly to ground without any resistors.

I was wondering earlier about using cathode resistors but didn't know how to adjust the values. I think I'll try this soon.

Dave


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