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Old March 2nd 10, 03:57 PM posted to rec.radio.amateur.homebrew
Allodoxaphobia Allodoxaphobia is offline
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First recorded activity by RadioBanter: Jul 2006
Posts: 148
Default PSU problem help needed

On Tue, 2 Mar 2010 08:07:13 -0000, Barett wrote:

With he 706 disconnected from the supply I put a new fuse and it blew. I
then disconnected all the secondary wires from the transformer and put a new
fuse in and it didn't blow.

I put the multi meter in series with the mains wire input to the transformer
and I got a reading of 300mA with all wires disconnected from the secondary
side of the transformer. I left the transformer switched on for a few hours
the transformer got too hot to touch and I could smell the heat from it.
This is the stage I'm up to at the moment Fred.


Shorted windings -- probably in one of the secondary sections.

Jonesy
--
Marvin L Jones | jonz | W3DHJ | linux
38.24N 104.55W | @ config.com | Jonesy | OS/2
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