Need help with a Multi Tap transformer...

skillet · Mar 6, 2009

Working on a RCA Stereo/CD/Cassette player for an elderly neighbor..

The transformer is not putting out on the secondary side.. Under the outer wrapping layer is a component with this lettering..

M30
TF 125 Degrees Celsius
12K

Is this some kind of thermal protection?
Can I bypass it safely?
Where can I get another transformer then?

Thanks!!
Gordon

tommylight · Mar 6, 2009

It is a thermal fuse and yes you can bypass it, but first check what caused the overheating ( most probable causes are a short in speaker terminals, blown power amplifier or messed up rectifier).

parnass · Mar 7, 2009

If you bypass the thermal fuse permanently, be sure to install some other form of protective device in the primary side, e.g., a fuse or circuit breaker.

luckee · Apr 29, 2009

parnass said:
If you bypass the thermal fuse permanently, be sure to install some other form of protective device in the primary side, e.g., a fuse or circuit breaker.

What Parnass said. You can pick up an inline fuse at Radio shack.

Need help with a Multi Tap transformer...

skillet

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tommylight

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parnass

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luckee

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