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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: The Dynaco looked better with the dust posted by Byrd69 on May 26, 2022 at 07:15:28:
A tube rectifier is not linear in the way it conducts. So at low voltages from your variac, it is not on at all, then, at some point, it comes on.
If you are trying to find out if the amp is bad, or reform the caps, buy one of the cheap, socketed, solid state rectifiers off of the internet, or break open a worn octal tube and solder in a couple of diodes, or even tack solder them to the back side of the 5AR4 socket. You can then bring up the amp in a linear fashion.
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Follow Ups
- Bringing it up with a 5AR4 wont get you there. - viridian 09:06:16 05/26/22 (5)
- RE: Bringing it up with a 5AR4 wont get you there. - PakProtector 08:49:45 06/03/22 (0)
- Oh yes it will - Byrd69 06:08:13 05/28/22 (1)
- Roll of the dice, glad it worked out. nt - viridian 10:33:14 05/28/22 (0)
- Exactly right! - Triode_Kingdom 09:11:22 05/26/22 (1)
- Your advice is appreciated and accepted. No power for the Dyna. - Byrd69 09:37:19 05/26/22 (0)
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