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View Full Version : Help with reverb issue on my Fender Twin


TheMadCap
June 28th, 2009, 01:52 PM
Hello everyone, I tried to search for this issue, but did not find one that could help me out, so here goes:

I have a Fender Twin from ~1997 or so. This amp is the one with the three channels and the pull knobs. Anyways, the reverb works fine on the gain channel, but I get nothing on either the clean or the semi-gain channel. Any ideas on what might be wrong? I did move this amp for a jam session I had recently, and the reverb was working find then. Thanks, and let me know if more information is needed...
Gutmann
June 28th, 2009, 02:38 PM
Is it THIS ONE (http://www.thevintagesound.com/ffg/twin_custom.html) ore the RedKnob Version?

There was another reverb-problem with a twin, HERE (http://www.thefret.net/showthread.php?t=11272) - maybe you can find some help there, but the problem was a bit different.
TheMadCap
June 28th, 2009, 03:54 PM
Is it THIS ONE (http://www.thevintagesound.com/ffg/twin_custom.html) ore the RedKnob Version?

There was another reverb-problem with a twin, HERE (http://www.thefret.net/showthread.php?t=11272) - maybe you can find some help there, but the problem was a bit different.


Yes, it is a redknob version.

I did see that particular post, but it's not helping with my present issue. Thanks for your response...

UPDATED: Looks like the culprit is a bum tube. It appears that #4 might be barely alive, but definitely on it's last legs. so this poses a new question, I've actually never replaced tubes on my amp before, do they need to be replaced in pairs?
markb
June 28th, 2009, 11:50 PM
Only the power valves need to replaced as a set (4 on your Twin). Preamp valves can be swapped at will.