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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: Output Tube Bias Problem posted by Msquared on February 4, 2006 at 06:18:36:
I've had this problem with 6550's before, also. If your amp is designed to run them very conservatively [ around 30-35ma ] , than the bias pots designed with the amp are within that particular range. The design intent was probably to install pots that are in finer increments so you can dial the bias in very accurately with tubes that are produced and tested very closely within that range, however the tubes you installed were not chosen from that intended range, there's nothing wrong with the tubes , the problem is with the bias pots in your amp, if they were a courser increment ,than they could accomadate these tubes, but that wasn't the intent of the designer. Kevin Davis
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Follow Ups
- Re: Output Tube Bias Problem - Kevin 07:39:00 02/04/06 (4)
- Re: Output Tube Bias Problem - Msquared 09:12:11 02/04/06 (3)
- Re: Output Tube Bias Problem - Kevin 05:52:38 02/05/06 (1)
- Re: Output Tube Bias Problem - Msquared 06:26:54 02/05/06 (0)
- Re: Output Tube Bias Problem - Tre' 15:35:23 02/04/06 (0)
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