Noobie with a used Fender Twin Problem

Telelove · October 5th, 2008, 11:11 PM

I just bought a used Fender Twin RI. It worked great for about a month. One day I left it on for about 8 hours by accident. The next day I turn it on, and after it warms up I get this awfull loud continuous screach/ howling/ static sound. If I knock on the top of the cab a little it stops for a while, then starts up again. The amp also seems to have lost a lot of volume. I turned the lights off and looked at the back and noticed that one of the power tubes were sparking blue in sync with the screaching. I was hoping that the problem was caused by a burnt power tube, So, I replaced that power tube, but the new tube did the same thing. This is the only tube amp ive ever had and don't know a whole lot about it. Has anyone else had a similar problem? Should I try replacing all the tubes or just take it to a repairman...did I get ripped off or did I mess it up by leaving it on and just need to junk it? LOL

T_red7882 · October 5th, 2008, 11:50 PM

get it to a tech fast man

stantheman · October 6th, 2008, 09:37 AM

Sounds like something went South on the pcb, could be simple like a solder joint, but yeah get it to a tech asap.

October 5th, 2008, 11:11 PM	#1 (permalink)
Telelove NEW MEMBER! Join Date: Sep 2008 Location: Ft Worth, Texas Age: 33 Posts: 3	Noobie with a used Fender Twin Problem I just bought a used Fender Twin RI. It worked great for about a month. One day I left it on for about 8 hours by accident. The next day I turn it on, and after it warms up I get this awfull loud continuous screach/ howling/ static sound. If I knock on the top of the cab a little it stops for a while, then starts up again. The amp also seems to have lost a lot of volume. I turned the lights off and looked at the back and noticed that one of the power tubes were sparking blue in sync with the screaching. I was hoping that the problem was caused by a burnt power tube, So, I replaced that power tube, but the new tube did the same thing. This is the only tube amp ive ever had and don't know a whole lot about it. Has anyone else had a similar problem? Should I try replacing all the tubes or just take it to a repairman...did I get ripped off or did I mess it up by leaving it on and just need to junk it? LOL

October 5th, 2008, 11:50 PM	#2 (permalink)
T_red7882 Tele-Afflicted Join Date: Dec 2006 Location: San Francisco Age: 26 Posts: 1,099	get it to a tech fast man __________________ Homebrew tele (modeled after a 52) or MIM std strat-------> Mission 5E3 or 65 TRRI

October 6th, 2008, 09:37 AM	#3 (permalink)
stantheman Poster Extraordinaire Join Date: Jun 2003 Location: White Mountains Posts: 5,389	Sounds like something went South on the pcb, could be simple like a solder joint, but yeah get it to a tech asap. __________________ Somebody Loan Me A Dime