Tubes Asylum

RE: Clarification Needed

76.160.14.207

In Reply to: RE: Clarification Needed posted by Chris O on May 12, 2008 at 15:27:38

Chris O mentioned the first thing that I thought of which was that the sockets and tube's pins were not making a good contact. If the connection to the G1 pin is not good the tube could "see" 0 volts of bias and run full throttle which would of course make the plates glow.

I have an ST40 which had bad sockets and once in a while the tubes would have cherry red plates. I tightened the sockets contact with a dental pick and that solved the problem. Of course I also cleaned them very well too.

Perhaps that's the problem here too. Let's hope so since it's a $0.00 fix.
roN

Follow Ups:

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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