Search found 7 matches
- Tue Apr 02, 2019 3:24 pm
- Forum: Fender Discussion
- Topic: Fender 'The Twin' Red Knob Version Mods and Repairs
- Replies: 14
- Views: 18013
Re: Fender 'The Twin' Red Knob Version Mods and Repairs
R101 is 8.2 meg on both Red knobs I have, as it shows in the schematic. C117 may not be installed on your amp, my older amp had it,the newer one didn't.. I wound up adding it to the newer amp that didn't have one installed.
- Thu Feb 14, 2019 4:52 pm
- Forum: Fender Discussion
- Topic: Fender 25R solid state to BF Vibro-Champ
- Replies: 4
- Views: 748
Re: Fender 25R solid state to BF Vibro-Champ
That is really good information.. A week ago or so I just repaired and cleaned up a ragged out 1966 Viba-Champ for a friend. I really liked it after playing on it (you have to test it after you get it going ..). So if I run into an opportunity with Fender 25R, I may do the conversion also.
- Fri Dec 22, 2017 2:58 pm
- Forum: Fender Discussion
- Topic: Fender 'The Twin' Red Knob Version Mods and Repairs
- Replies: 14
- Views: 18013
Re: Fender 'The Twin' Red Knob Version Mods and Repairs
Thanks Drew, that clears it up for me. Now I just have to figure the best way to place the extra resistors and cap on a the power board so it will be relatively neat and reliable.
Thanks again.
Thanks again.
- Tue Dec 19, 2017 12:55 am
- Forum: Fender Discussion
- Topic: 73 Quad Reverb 100w. 'Restoration' into a head cab
- Replies: 15
- Views: 2366
Re: 73 Quad Reverb 100w. 'Restoration' into a head cab
Looking good!
- Tue Dec 19, 2017 12:50 am
- Forum: Fender Discussion
- Topic: Question on Red know Twin ..Choke
- Replies: 2
- Views: 546
Re: Question on Red know Twin ..Choke
That is what I see in the schematic, I suspect 90ma a little more than needed on the Silver faced Twins. Then subtract the load from the preamp tubes ..
Thanks for the response...
Thanks for the response...
- Mon Dec 18, 2017 10:02 pm
- Forum: Fender Discussion
- Topic: Question on Red know Twin ..Choke
- Replies: 2
- Views: 546
Question on Red know Twin ..Choke
I acquired a Red Knob Twin chassis with no tubes, cabinet,etc... I have been recapping and doing most of the mods suggested by Zenrelic in his Red knob thread. So far, so good, no magic smoke escaped and it seems to be working pretty good. The Red knob "The Twin" has a 4H 50MA choke (P/N 022707), mo...
- Tue Dec 05, 2017 3:19 pm
- Forum: Fender Discussion
- Topic: Fender 'The Twin' Red Knob Version Mods and Repairs
- Replies: 14
- Views: 18013
Re: Fender 'The Twin' Red Knob Version Mods and Repairs
Thanks for posting the Mods, it saved me a ton of time and trial and error head aches. I'm working thru most of your recommendations at this time. I have all my heater wires replaced and twisted up neatly above the tubes.. I have a a question about your heater elevator mod. I'm a little confused you...