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Old September 30th 09, 02:02 AM posted to rec.radio.amateur.boatanchors
Scott Dorsey Scott Dorsey is offline
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First recorded activity by RadioBanter: Jul 2006
Posts: 774
Default Do SOLAs go bad?

Richard Knoppow wrote:
Sola transformers were made for all sorts of output
voltages. The caps do go bad which changes the volage at the
output and can prevent the transformer from regulating. I
also have a couple of old Sola's which do not regulate at
the correct voltage despite new caps of the right value. I
have never been able to find out what causes this.


Most probably load. These things MUST be loaded to half the rated
maximum load for proper regulation.

Note that the capacitors must be non-polarized types.


Film caps are recommended.
--scott


--
"C'est un Nagra. C'est suisse, et tres, tres precis."