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Tubes Asylum Questions about tubes and gear that glows. FAQ |
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Tubes Asylum Questions about tubes and gear that glows. FAQ |
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In Reply to: RE: Fisher 800-C questions (newbie) posted by Jim McShane on July 1, 2008 at 11:55:45:
Yeah, what he said.... Seriously, you will certainly change the tone of your Fisher when you FIX it. There are some tubes and parts in there that are running on about 5 out of 8 cylinders. They are way past their designed service life. You are not listening to the amp circuit at its full potential, like when it was new. It is crippled. Sure, it sounds pretty good. Welcome to the world of tube audio! BUT, please consider that it will sound better when all the parts in there are operating properly. Change the resistors, the caps and the output tubes. Test the small signal tubes and simply change the ones that aren't testing strong. A new production 12ax7 that is very good is only about $15. Really, they are very good. The tungsol reissue or the new mullard reissue 12ax7 are nice tubes. But you may not even need any...just the output tubes. If you re-cap the power supply, the coupling caps and fix the grid resistor problem and put in new output tubes as Jim suggests, you will be amazed at how much better that amp will sound. Also, remember that all the new parts take 30 or 40 hours to burn in at a minimum so don't judge it right away after you do it.
cheers,
Don
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Follow Ups
- RE: Fisher 800-C questions (newbie) - dls123 08:28:20 07/02/08 (0)
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