J Larsen Posted November 9, 2005 Report Posted November 9, 2005 When I plugged in my early 70's Fender Champ tonight, it made this really awful static/hissing sound, and received no signal from my guitar. After turning it on and off several times and switching back and forth between inputs 1 and 2, I finally got some sound out of it, but it was pretty flat sounding. Up until tonight it has been very reliable and has always sounded great. Any idea as to what could be wrong? I've grown really attached to it and I'll really bummed if it's just dead.... Quote
Jim Alfredson Posted November 9, 2005 Report Posted November 9, 2005 Try taking out the tubes and putting them back in again or just jiggling them. There's only what, two tubes in there? But if they sit for a long time the pins could oxidize a bit. Quote
Joe G Posted November 9, 2005 Report Posted November 9, 2005 I've been having a problem with my (late 70's) Champ as well. Sounds great at first, then the signal just dies out; it just makes this vapid farting noise. Sometime messing with the tubes seems to help, other times it seems connected to the input jacks. I'm not sure what's up, but I'll be getting it looked at this week. Quote
Jim Alfredson Posted November 9, 2005 Report Posted November 9, 2005 The caps could need replacing. The farting noise could be one shorting out after it gains a full charge. That is an easy thing to fix and I could do it if you don't want to pay someone to do it. Quote
Joe G Posted November 9, 2005 Report Posted November 9, 2005 Whatta guy. And you didn't even take the setup by asking if the farting noise was coming from me. Quote
dave9199 Posted November 9, 2005 Report Posted November 9, 2005 Try ramming the guitar neck into the speaker. That should take care of any noise. Quote
J Larsen Posted November 9, 2005 Author Report Posted November 9, 2005 Did you try another cable? ← Yep. BTW, the hissing/static noise occurs even with nothing plugged into the input jacks. In the past its always been perfectly silent with nothing plugged in. Quote
J Larsen Posted November 9, 2005 Author Report Posted November 9, 2005 Try taking out the tubes and putting them back in again or just jiggling them. There's only what, two tubes in there? But if they sit for a long time the pins could oxidize a bit. ← I'll try that as soon as I get home... thanks! Quote
casanovas347 Posted November 9, 2005 Report Posted November 9, 2005 Try ramming the guitar neck into the speaker. That should take care of any noise. ← seriously.... about hiss....does it sounds like a 120cycle noise (you guys have 60cycles in US....=120 with a full bridge rectifier) ....checking contacts on your tube-sockets is always a good plan Quote
J Larsen Posted November 10, 2005 Author Report Posted November 10, 2005 Try taking out the tubes and putting them back in again or just jiggling them. There's only what, two tubes in there? But if they sit for a long time the pins could oxidize a bit. ← Well, that didn't do it. I'm taking it to the doctor tonight. Quote
Chuck Nessa Posted November 10, 2005 Report Posted November 10, 2005 If I understand correctly this is an electrical instrument. That might be the problem. Quote
Joe G Posted November 11, 2005 Report Posted November 11, 2005 That would be the one underlying it all, yes. Quote
Chuck Nessa Posted November 11, 2005 Report Posted November 11, 2005 Thanks Joe. I thought I was on the right track. Quote
Jim Alfredson Posted November 11, 2005 Report Posted November 11, 2005 Try taking out the tubes and putting them back in again or just jiggling them. There's only what, two tubes in there? But if they sit for a long time the pins could oxidize a bit. ← Well, that didn't do it. I'm taking it to the doctor tonight. ← Probably just a bad tube then. I'm sure it will be an easy fix. Quote
J Larsen Posted November 11, 2005 Author Report Posted November 11, 2005 Try taking out the tubes and putting them back in again or just jiggling them. There's only what, two tubes in there? But if they sit for a long time the pins could oxidize a bit. ← Well, that didn't do it. I'm taking it to the doctor tonight. ← Probably just a bad tube then. I'm sure it will be an easy fix. ← Is it normal for a tube to go all at once like that? I was under the impression that they sort of slowly fizzled out. Quote
Jim Alfredson Posted November 11, 2005 Report Posted November 11, 2005 Just went back and read your initial post... didn't realize it was so quick. Could still be a tube, but probably a cap or something fizzled out. Or it could be a bad connection on the jack (those solder joints can sometimes break). I'm sure its something simple, though. Not much in there to break. Quote
J Larsen Posted November 11, 2005 Author Report Posted November 11, 2005 Not much in there to break. ← Agreed - as long as its not the transformer I should get it back in better condition than when I bought it. Quote
7/4 Posted November 11, 2005 Report Posted November 11, 2005 Is it normal for a tube to go all at once like that? I was under the impression that they sort of slowly fizzled out. ← I had a power tube go at a gig. It lost a lot of volume. I ended up using a PoD through the PA. Yek! Quote
7/4 Posted November 11, 2005 Report Posted November 11, 2005 Not much in there to break. ← Agreed - as long as its not the transformer I should get it back in better condition than when I bought it. ← Who's fixing it? Quote
J Larsen Posted November 12, 2005 Author Report Posted November 12, 2005 Not much in there to break. ← Agreed - as long as its not the transformer I should get it back in better condition than when I bought it. ← Who's fixing it? ← Blackie at Tubesville. The first three people I asked for recommendations all sent me to him. Quote
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