iFixit - Answers With Device "Fender 65 Twin Reverb"

Fender 65 Twin Reverb: Need Help Replacing a 240v Mains Transformer - RESOLVED

Sun, 14 Jan 2024 01:15:53 -0700

So I need to replace the mains transformer in this amp. It is a 240V primary power. The new transformer wire colours do not match the schematic I have and I am having difficulty identifying which wires on the primary side go where. I have the secondary side nutted out. Appreciate some help with the primary side. Cheers.

Pictures attached

Hey guys - I contacted Hammond - the maker of the transformers, and he gave me an updated wiring diagram. This coupled with a mate working out which primary wires go to which jumper sorted the problem and the amp and its new transformer are on speaking terms. Big thank you to all who contributed to this thread. Cheers, Rhea deLascy-Wells.

⟐ Edited January 14, 2024 at 1:15 MST

Fender 65 Twin Reverb: Dead Normal Channel - No Sound at All.

Thu, 25 Jan 2024 21:06:21 -0700

Hi - yes its the same amp which had the transformer issue. This time, in spite of the new transformer, the normal channel is silent. No sound when I plug guitar in. Here is what I have done so far. Aside from the transformer, I have also replaced, the filter caps, all tubes, retensioned the tube seats, cleaned seats, pots and jacks. The only sound I will get is when I run the guitar lead across my hand. Note, the guitar and lead works perfectly on the vibrato/reverb channel. What have I missed?

⟐ Commented January 25, 2024 at 21:06 MST

Fender 65 Twin Reverb: Dead Channel on Fender Twin

Sat, 13 Jan 2024 23:51:47 -0700

Fender Twin Reverb (re-issue) clean (or normal) channel not working. All tubes have been replaced - to no avail….what do I check or need to repair/replace?

⟐ Commented January 13, 2024 at 23:51 MST

Fender 65 Twin Reverb: Replaced power tubes, but one isn't working although it's good?!?

Sat, 09 Sep 2017 12:53:10 -0700

I've just replaced the old 6L6 GT power tubes for JJ's 6L6 GC. One tube didn't light up so I've switched position and the tube light up, but the other tube don't. I am guessing it's something to do with the socket, but I've tried the old tubes and all still work...

I appreciate your help on this, because it's a bit mind bending.

Thanks a lot,

Paulo

⟐ Answered September 09, 2017 at 12:53 MST

Fender 65 Twin Reverb: Tremolo Effect works then stops working. Is it the power tube?

Tue, 19 Jul 2022 20:50:35 -0700

I've tested the switch, used a shorted jumper plug. I know it's either the tube, optical-isolater or something else in the circuit. is it likely the tube? i've tried resitting the tubes, but the issue is that the circuit rarely works. Sometimes hitting the amp really hard fixes it. The effect will drop completely often and won't work again

Fender 65 Twin Reverb: Reverb function won’t turn off with the footswitch

Fri, 22 May 2020 22:50:37 -0700

The reverb function won’t turn off with the foot switch. The vibrato function works fine both on and off. Definitely not the footswitch itself as I’ve just replaced it with a brand new one.