[R-390] Power Transformers

Roy Morgan roy.morgan at nist.gov
Mon Jul 26 16:54:19 EDT 2004


At 10:42 PM 7/25/2004 -0400, Bob Camp wrote:
>...
>There are things we can do to lengthen the life of the transformers we 
>have *if* it's an issue.

Yes.
  - Use a line voltage reducing transformer.
  - Apply a fan to any non-A type radio (R-390, R-391, R-389)
  - Install a line inrush current reducer
  - (Do NOT  run your radios on a variac that can get turned up past your 
line voltage inadvertently.)

>So, has anybody ever seen a blown power transformer in one of these radios?

Nope.

Roy

- Roy Morgan, K1LKY since 1959 - Keep 'em Glowing!
7130 Panorama Drive, Derwood MD 20855
Home: 301-330-8828 Work: Voice: 301-975-3254,  Fax: 301-948-6213
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