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Duff jack sockets, non standard, or what?


goingdownslow
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I was recently given a non working guitar combo, one of these http://www.worthpoint.com/worthopedia/reuther-st-240-stereo-amp-german-made-955604578 Reuther ST240 Stereo Amplifier.
What I have discovered is the tip is not making contact in any of the input sockets.
I have removed one and opened it up and what appears to be the tip contact does not touch the tip on a standard jack plug.
This is an oldish amp, where there any other type of plug available then?
The tip contact is that tiny pip you can see in the first picture.
I have replaced one of the inputjacks that was not pcb mounted with a standard socket and the amp performs ok.
Replacing all the sockets is a no go.

[attachment=232059:JS1.jpg] [attachment=232060:JS2.jpg] [attachment=232061:JS3.jpg]

Edited by goingdownslow
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That link doesn't work now.
But the problem is visible on the pics.
There definitely have been issues with plug / socket compatability across manufacturers.
Sometimes it's been an imperial/metric tolerance issue.
You might get somewhere by cutting back the black plastic 'collar' of the socket so the tip reaches the contact ?

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[quote name='rmorris' timestamp='1479250667' post='3175152']
That link doesn't work now.
But the problem is visible on the pics.
There definitely have been issues with plug / socket compatability across manufacturers.
Sometimes it's been an imperial/metric tolerance issue.
You might get somewhere by cutting back the black plastic 'collar' of the socket so the tip reaches the contact ?
[/quote]
As far as I can see from the pictures ^ this looks like a good suggestion.

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