Hoffman Amplifiers Tube Amplifier Forum

Amp Stuff => Misc Schematics and Layouts => Topic started by: francesco on October 30, 2008, 09:22:13 am

Title: schematic twin reverb
Post by: francesco on October 30, 2008, 09:22:13 am

Hi, I'm looking for the schematic (or layout) of my twin reverb silverface (anno 1977) which has 135 watts
rms, it came with JBL speakers d-120.  push-pull master volume
Back panel : hum balance, output tube machting and line recording out.
Well, I've never found the the original schematic of this (maybe rare) model.
So please,if anybody has it..................

Title: Re: schematic twin reverb
Post by: sluckey on October 30, 2008, 10:03:07 am

http://www.schematicheaven.com/fenderamps/twin_reverb_sf_135_schem.pdf

Title: Re: schematic twin reverb
Post by: LooseChange on October 30, 2008, 04:52:51 pm

I've tone modded three of these in the past 2 months... They do warm up.

Title: Re: schematic twin reverb
Post by: duke of earl on November 07, 2008, 05:06:40 pm

I've got one that I am Blackfacing with a Marshall Mod to channel 1. Also upgrading the speakers. The amp in original form sounds thin and weak. These are a lot of work to Blackface if you address the sloppy wiring. I'll let you know how it sounds when completed.