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Post subject: 65 twin reverb reissue Ground Switch
Posted: Wed Dec 20, 2017 8:29 am
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After pulling the head of a 1990s 65 Twin Reverb Reissue, I noticed that there are no hook up wires connected to the ground switch. I'm guessing that this was a factory error as it is my understanding that I am the first person to open the amp. The PCB has open connectors as can be seen in my second and third pics. I'm thinking the the ground switch hooks up to the three connectors in pic #2 but am not sure. Can anyone please tell me to which connectors on the PCB the three ground connectors should be attached? Image
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Post subject: Re: 65 twin reverb reissue Ground Switch
Posted: Tue Dec 26, 2017 3:38 am
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Ground switch are useless today with grounded house outlet.
65 TRR schematic show no ground switch

Fender put that on some modern amp just for the vintage look, no wiring. It is not a factory error :lol:

I can't see your picture , do you ?


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Post subject: Re: 65 twin reverb reissue Ground Switch
Posted: Tue Dec 26, 2017 7:22 am
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I don't see the pics either.

But exactly what Stratele52 said. Ground switches no longer meet electrical code. The early reissues had purely cosmetic switches. They eliminated the switch entirely on later reissues.

Do not connect it as a ground switch. 2 of the 3 positions are unsafe.

Some people use the switch for various mods. The hole is a handy place to install a PPIMV master volume. But otherwise it was just an attempt to make the reissue look exactly like the originals.


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