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Post subject: excessive hum w/ Fender Twin
Posted: Wed Feb 20, 2008 1:14 pm
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Hey guys just picked up a Twin a few days ago and i noticed that theres some hum when on the 1/4 power and about twice the hum at FULL. Is this just a characteristic of the Twin? Or should i take it back and get a different one? I'm using a humbucker strat so would that have anything to do with it? The hum isn't insane but its enough to annoy me...

-stratdude83

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Posted: Wed Feb 20, 2008 3:08 pm
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Not that I have an answer for you, but I just bought a SuperSonic the other day, and it has an annoying hiss/hum. I've used it in three different locations and can still hear it in varying degrees.

I sure wish I could get a straight answer myself.


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Posted: Wed Feb 20, 2008 7:25 pm
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i think it has something to do with the caps but not entirely sure...maybe it will slightly go away after its "broken in" but who knows...the funny thing is i'm going to pick up one of those new Vintage Hot Rod strats as well...that thing was just killer!

-stratdude83

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Fender Highway 1 Strat, Fender Lonestar Stratocaster 25th Anniversary, Orange Rockerverb 50 w/ PPC212, Crate Vintage Club 30 Tube Amp, Digitech GNX3, Line6 pedals, Ibanez Tube Screamer (my fav), Crybaby Wah


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Posted: Wed Feb 27, 2008 12:39 pm
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I have the same issue with my fender twin. The first one I had to send back. It too had hum, without any cable plugged in. Tried the 1/4 switching, and smoke came out of the back.

It was replaced. The next hummed, and I figured I'd give it a bit to see if the new just needed to wear off, but it still does the same thing, not too bad though. After about 2 months, the gain knob/pot started having static when you turned it up or down, as well as the reverb knob. I don't use a lot of gain, for the most part, and I always let my tubes warm up a little before I switch them on. I take very good care of the amp.

I have kept the amp on 1/4 switching, after testing it on both. I've had the amp less than a year, and just the other day it started sounding like crap on the distortion chanel, and there was a noticeable difference on the clean chanel as well. It The clean chanel is not that bad at all. I hooked a Marshall GOV plus dist. pedal straight to the input, and ran it on the clean chanel, and it still sounded like crap.

I turned everything off and waited a little bit, and then switched it to full power, and powered it on, and it sounded much better, although still not like it was.

When it was right, the sound was awsome, but I was sure expecting a better quality amp for the price I paid. I almost went with the peavey JSX instead, and wondering if I should have.

I don't know how long fender warrants the tubes for, as I believe this is the issue, but certainly not the issue for the static in the pots.

One draw back to sending it to an authorized repair shop, is that there are fewer of them now, for some reason, and all are a good distance from me, with a 4 to 6 week back log.


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Posted: Thu Feb 28, 2008 8:14 am
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mindbender wrote:
I have the same issue with my fender twin. The first one I had to send back. It too had hum, without any cable plugged in. Tried the 1/4 switching, and smoke came out of the back.

It was replaced. The next hummed, and I figured I'd give it a bit to see if the new just needed to wear off, but it still does the same thing, not too bad though. After about 2 months, the gain knob/pot started having static when you turned it up or down, as well as the reverb knob. I don't use a lot of gain, for the most part, and I always let my tubes warm up a little before I switch them on. I take very good care of the amp.

I have kept the amp on 1/4 switching, after testing it on both. I've had the amp less than a year, and just the other day it started sounding like crap on the distortion chanel, and there was a noticeable difference on the clean chanel as well. It The clean chanel is not that bad at all. I hooked a Marshall GOV plus dist. pedal straight to the input, and ran it on the clean chanel, and it still sounded like crap.

I turned everything off and waited a little bit, and then switched it to full power, and powered it on, and it sounded much better, although still not like it was.

When it was right, the sound was awsome, but I was sure expecting a better quality amp for the price I paid. I almost went with the peavey JSX instead, and wondering if I should have.

I don't know how long fender warrants the tubes for, as I believe this is the issue, but certainly not the issue for the static in the pots.

One draw back to sending it to an authorized repair shop, is that there are fewer of them now, for some reason, and all are a good distance from me, with a 4 to 6 week back log.


It sounds like a bad tube to me...you know i think a lot of it has to do with bad soldering...the new standard for RoHS compliant parts is the use of non-lead solder which has a higher melting temperature so its harder to work with then leaded solder. I think this is why there have been some quality issues lately because Fender started using non-lead solder in mid 2006...if you have it use leaded solder!!

But definitely sounds like a bad output tube or somethin...get'em checked!


-stratdude83

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Fender Highway 1 Strat, Fender Lonestar Stratocaster 25th Anniversary, Orange Rockerverb 50 w/ PPC212, Crate Vintage Club 30 Tube Amp, Digitech GNX3, Line6 pedals, Ibanez Tube Screamer (my fav), Crybaby Wah


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Post subject:
Posted: Mon Mar 03, 2008 1:59 pm
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Joined: Fri Jan 04, 2008 2:03 pm
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Location: Detroit, MI
stratdude83 wrote:
mindbender wrote:
I have the same issue with my fender twin. The first one I had to send back. It too had hum, without any cable plugged in. Tried the 1/4 switching, and smoke came out of the back.

It was replaced. The next hummed, and I figured I'd give it a bit to see if the new just needed to wear off, but it still does the same thing, not too bad though. After about 2 months, the gain knob/pot started having static when you turned it up or down, as well as the reverb knob. I don't use a lot of gain, for the most part, and I always let my tubes warm up a little before I switch them on. I take very good care of the amp.

I have kept the amp on 1/4 switching, after testing it on both. I've had the amp less than a year, and just the other day it started sounding like crap on the distortion chanel, and there was a noticeable difference on the clean chanel as well. It The clean chanel is not that bad at all. I hooked a Marshall GOV plus dist. pedal straight to the input, and ran it on the clean chanel, and it still sounded like crap.

I turned everything off and waited a little bit, and then switched it to full power, and powered it on, and it sounded much better, although still not like it was.

When it was right, the sound was awsome, but I was sure expecting a better quality amp for the price I paid. I almost went with the peavey JSX instead, and wondering if I should have.

I don't know how long fender warrants the tubes for, as I believe this is the issue, but certainly not the issue for the static in the pots.

One draw back to sending it to an authorized repair shop, is that there are fewer of them now, for some reason, and all are a good distance from me, with a 4 to 6 week back log.


It sounds like a bad tube to me...you know i think a lot of it has to do with bad soldering...the new standard for RoHS compliant parts is the use of non-lead solder which has a higher melting temperature so its harder to work with then leaded solder. I think this is why there have been some quality issues lately because Fender started using non-lead solder in mid 2006...if you have it use leaded solder!!

But definitely sounds like a bad output tube or somethin...get'em checked!


-stratdude83


i believe they stopped making the reissue twin before 2006 so the non-lead solder would not apply...

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Fender Highway 1 Strat, Fender Lonestar Stratocaster 25th Anniversary, Orange Rockerverb 50 w/ PPC212, Crate Vintage Club 30 Tube Amp, Digitech GNX3, Line6 pedals, Ibanez Tube Screamer (my fav), Crybaby Wah


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