'72 Twin Reverb: Reverb coming through dry channel

Fender Amp Discussion

Moderators: pompeiisneaks, Colossal

Post Reply
fendertubey
Posts: 3
Joined: Tue Jul 08, 2014 3:59 am

'72 Twin Reverb: Reverb coming through dry channel

Post by fendertubey »

Hi. Just got '72 Twin Reverb. When I dial up the reverb, the effect is also coming through the Normal channel. Someone's mod gone wrong? Thanks.
pops
Posts: 160
Joined: Tue Dec 17, 2013 12:27 am
Location: S.W. Wi.

Re: '72 Twin Reverb: Reverb coming through dry channel

Post by pops »

It is an easy mod to have reverb and trem on both channels, has someone modded it in the past? Reversing can be as simple as moving a wire.
The world is a better place just for your smile.
fendertubey
Posts: 3
Joined: Tue Jul 08, 2014 3:59 am

Re: '72 Twin Reverb: Reverb coming through dry channel

Post by fendertubey »

I'm guessing someone has tinkered with it, Pops. Can you recommend a good place to start with reversing such a mod? Thanks.
sluckey
Posts: 3528
Joined: Sun Jul 22, 2007 7:48 pm
Location: Mobile, AL
Contact:

Re: '72 Twin Reverb: Reverb coming through dry channel

Post by sluckey »

Here's the popular one wire mod. Maybe this is what you have...
You do not have the required permissions to view the files attached to this post.
fendertubey
Posts: 3
Joined: Tue Jul 08, 2014 3:59 am

Re: '72 Twin Reverb: Reverb coming through dry channel

Post by fendertubey »

Thanks for the help. I decided to keep the reverb mod. The master volume has been disconnected and I want to hook it back. I'm a decent solderer but struggle with schematics. Any suggestions on the rewiring of this? Thanks.
User avatar
Structo
Posts: 15446
Joined: Wed Oct 17, 2007 1:01 am
Location: Oregon

Re: '72 Twin Reverb: Reverb coming through dry channel

Post by Structo »

First of all you need to identify the circuit.

Then determine what mods were done.

To return it the the original, you can browse through schematics.

Such as here.
You do not have the required permissions to view the files attached to this post.
Tom

Don't let that smoke out!
pops
Posts: 160
Joined: Tue Dec 17, 2013 12:27 am
Location: S.W. Wi.

Re: '72 Twin Reverb: Reverb coming through dry channel

Post by pops »

The master reverb usually sounds bad which is why i'm guessing someone defeated it. I have done that several times. Leaving the reverb on both channles will allow you to bridge the two channels now as they well be in phase, a really nice thick sound.
The world is a better place just for your smile.
Post Reply