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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 old TS 6550 burnt cathode resistor when I was sleeping.... posted by wlee on June 21, 2005 at 18:22:56:
William,Sorry, but a 6550 can pop a 10-ohm, 2 watt resistor quite easily, if the tube is shorted out. Heck I don't think that it is unusual for a 6550 to pop 10 watt resistors.
Anyhow, that's what the resistor is there for, to protect the rest of the amp (like $$$ trannies and the power supply).
One thing, how old are the caps and diodes in the bias power supply? Sometimes, when new tubes are put into an amp, the bias power supply circuit fails after a few hours of use.
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Follow Ups
- Re: the old TS 6550 burnt cathode resistor when I was sleeping.... - steven oda 18:50:35 06/21/05 (9)
- Re: the old TS 6550 burnt cathode resistor when I was sleeping.... - wlee 21:37:13 06/21/05 (8)
- Re: the old TS 6550 burnt cathode resistor when I was sleeping.... - lovetube 04:10:17 06/22/05 (7)
- Re: the old TS 6550 burnt cathode resistor when I was sleeping.... - wlee 04:48:05 06/22/05 (6)
- Re: the old TS 6550 burnt cathode resistor when I was sleeping.... - steven oda 08:34:33 06/22/05 (5)
- Re: the old TS 6550 burnt cathode resistor when I was sleeping.... - wlee 08:48:01 06/22/05 (4)
- concerning new TS 6550's from the reflector plant (Russia) - rws 17:59:21 06/22/05 (1)
- Re: concerning new TS 6550's from the reflector plant (Russia) - wlee 01:18:52 06/23/05 (0)
- rock steady bias supply - steven oda 13:37:18 06/22/05 (1)
- Re: rock steady bias supply - wlee 18:09:34 06/22/05 (0)
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