Tubes Asylum

My gut reaction to your problem.....

4.245.106.150

In Reply to: RE: WINGED CS BLOWING UP posted by rr1405 on May 12, 2008 at 09:06:59

Based on my experience with SED's (very rugged tubes, generally speaking) and the fact that you have had tubes fail in two different positions, but that they worked properly for months, is that you might be be biasing on the high side at 33ma. Don't know what Cayins suggest or require though. FWIW, drift can be caused either by tubes, or amps but I've only had one amp that did it. Usually it was a bummer tube. My Cayin is very stable (A100T). FWIW.

Follow Ups:

RE: My gut reaction to your problem..... - rr1405 12:24:03 05/12/08 (13)
- It is more of the tube than just the amp. . . - John PA 13:50:46 05/12/08 (12)
  - Clarification Needed - Larry I 15:03:30 05/12/08 (11)
    - RE: Clarification Needed - Chris O 15:27:38 05/12/08 (10)
      - RE: Clarification Needed - REL54 16:13:08 05/12/08 (9)
        
        RE: Clarification Needed - rr1405 10:27:45 05/13/08 (6)
        
        I use the DC mA setting on my Multimeter, not the DCV..... - Chuck Y 11:46:42 05/13/08 (5)
        
        RE: I use the DC mA setting on my Multimeter, not the DCV..... - rr1405 12:01:06 05/13/08 (4)
        
        If you mean you just checked using the dc ma setting...... - Chuck Y 13:00:46 05/13/08 (3)
        
        RE: If you mean you just checked using the dc ma setting...... - rr1405 16:37:09 05/14/08 (2)
        
        RE: If you mean you just checked using the dc ma setting...... - Chuck Y 18:26:57 05/14/08 (1)
        
        RE: If you mean you just checked using the dc ma setting...... - rr1405 08:28:02 05/16/08 (0)
        
        check the solder joints on all sockets too... - Jonesy 16:49:03 05/12/08 (1)
        
        Yes, my first thought would always be Chinese quality control! - Frihed89 06:13:08 05/13/08 (0)

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