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Post subject: Fender Dual Showman SR transformer
Posted: Sat Mar 14, 2020 2:02 pm
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Joined: Thu Mar 12, 2020 6:30 pm
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I am trying to get a little more info on the repairing of the transformer on my Fender dual Showman SR 87-93. A few years back there was a very helpful post about replacing the thermal fuse under the cover of my tran. The post said to remove cover on side with wires and look under paper and there should be a thermal fuse there on that transformer that is replaceable. I have removed cover and peeled back paper on sides of coil and do not see any fuse does anyone know if I need to unsolder the cooper band and go in a little deeper. The original poster said he had pictures but I can't seem to get in touch with him it was an old post and he may not be around now.
Transformer numbers F026477 EIA606-115 Thanks any help would be greatly appreciated


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Post subject: Re: Fender Dual Showman SR transformer
Posted: Sun Mar 15, 2020 12:53 am
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Joined: Fri Feb 05, 2010 4:31 am
Posts: 14045
Location: Province de Québec, Canada
I don' know if these Fender power transformer have (internal) thermal fuse.
Are you sure Power Transformer is bad ?

Google : Fender power transformer thermal fuse

You may find some useful link ( answer ?) there.

One of them;

Peavey Power transformer ; Video showing how to find the thermal fuse;
https://www.youtube.com/watch?v=F-oqsHIR4Uk

Good luck
__________________________________________________
https://surfguitar101.com/forums/topic/9508/

"I took my reverb unit to an amp tech yesterday. The unit won't power up. Turns out, it's the transformer. The guy told me that the Fender transformers now have small fuses inside them, but that the fuses aren't needed. He unsoldered the copper that wraps around the transformer. Then, he cut and pealed back a few layers of the transformer. Sure enough, there was a tiny clear plastic fuse with an extremely slender wire inside that had broken.

The amp tech told me that he'll just by-pass the fuse with a small wire. Of course, none of this helps with what blew the fuse in the first place. I guess we'll see, once he by-passes the fuse.

So, my questions are whether or not anybody else was aware of the fact that transformers have those small fuses inside? I'm interested in knowing more about that. Apparently, the company that makes the transformers makes them with and without the fuses, but Fender uses the ones with fuses because of code. I'm also wondering if it's true that bypassing the fuse inside the transformer won't hurt anything? The amp tech told me that the main fuse is all that's really required.

Seems like a weird thing, to have a fuse inside the transformer like that!


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