Power Forum

RE: How do I tell if I have a 200C or 200CX

67.104.10.163

In Reply to: RE: How do I tell if I have a 200C or 200CX posted by SQLGuy on March 08, 2009 at 20:24:54

What we noticed years ago is that sometimes the laminations came loose and all you had to do was tighten the bolts that hold the lams together. Try that. We never had much luck with varnish. Cyno acrylate in a vacuum chamber worked well to quiet the lams, but I think possibly tightening the four bolts might do it. Most had noticeable hum only if you put your ear up to the unit. It can also be that your AC has a bit of DC on it. Try measuring the DC voltage on the power line and see.

Follow Ups:

RE: How do I tell if I have a 200C or 200CX - SQLGuy 21:08:05 03/09/09 (3)
- RE: How do I tell if I have a 200C or 200CX - PaulMC 05:34:38 03/10/09 (2)
  - RE: How do I tell if I have a 200C or 200CX - SQLGuy 18:12:16 07/13/09 (1)
    - RE: How do I tell if I have a 200C or 200CX - PaulMC 14:54:53 07/17/09 (0)

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