#1
i have a fender blues deluxe of which the volume has drastically decreased.
i used to be barely able to turn it up past 3 without getting uncomfortable about the volume, but now i can turn it up to 5 without really getting uncomfortable.

i think it happened at band practice. i was playing, everything was fine, i flicked it off to take a break. i come back a while later, flick it on again, but i had to turn it up more than i used to...

both my drive and clean channel are decreased in volume, and i can't see anything wrong about the tubes.
do you guys know which tubes are the problem ? i have a gig next week, and ireally need the tubes by then.

i would like to know which tubes (if it's the preamp, the V1, V2 and/or the V3 ? ) are the problem, because i don't really feel like changing all of them...

thanks guys !
#2
sounds like a power tube. you positive its the amp though?
Get off this damn forum and play your damn guitar.
#4
guitar volume
bad lead
amp settings e.g. EQ
pedal maybe?

ok, maybe not so id say power t00bs

EDIT: today my tone was terrible with distortion, and then i realised my guitar was in coil split mode
Get off this damn forum and play your damn guitar.
#5
Quote by stevo_epi_SG_wo
guitar volume
bad lead
amp settings e.g. EQ
pedal maybe?

ok, maybe not so id say power t00bs

EDIT: today my tone was terrible with distortion, and then i realised my guitar was in coil split mode

guitar volume was at 10.
bad lead - hm... i don't think so, i tried several leads since at it was always the same volume.
i <3 my mids, they're at 12 all the time. i don't think it's bad EQ'ing.
i go straight to the amp most of the times.

you're positive it's not a preamp tube ? the V1 for example ?
#6
a preamp tube would probably cause a change in tone and significantly less OD. im no expert though
Get off this damn forum and play your damn guitar.
#7
there isn't really a big change in tone, i have however noticed that my amp has a bit less OD at max volume....
#8
on my friend's amp, there is a thing called a powersqueese or something like that. It decreased the watting and volume or something at the flick of a switch. see (if your amp has that kind of feature) that it is off.
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#11
Quote by The Real Ming
Poweramp tubes

you sure ?

i don't want to spend my money on the poweramp tubes to end up realizing it's the preamp tubes
#12
I have little experience with tube amps, but I have always been told pre-amp tubes are most responsible for volume, and power amps have always been more for tone/crunch.
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#13
Quote by MoonBoots432
I have little experience with tube amps, but I have always been told pre-amp tubes are most responsible for volume, and power amps have always been more for tone/crunch.

so it's my preamp tubes ?
#14
Here's an idea: try swapping your preamp tubes with each other, see if one tube is defective. Otherwise odds are it's a power tube.
#15
Quote by MoonBoots432
I have little experience with tube amps, but I have always been told pre-amp tubes are most responsible for volume, and power amps have always been more for tone/crunch.

It's the opposite.

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#16
Quote by stradivari310
It's the opposite.


+1

Sounds like power amp tubes. I had an old Twin Reverb, and I got really huge changes in volume all the time, cause one of my tubes was dropping in and out.

Pop some new power amp tubes in there, and you should be golden.
#17
alrighty power tubes it is, then. i believe a set of JJ's would be good for a blues deluxe ?


thanks a lot everyone for the help, now i can go to the gig next week without worrying about being too quiet or having bad tone .
#18
like ameer mentioned, do you have an extra pre tube that you can swap in, just to check? I've seen the PI cause problems like that on other amps. It's a good idea to keep an extra pre around anyway. It does sound like a power tube issue though if it's volume related.
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#19
Quote by Erock503
like ameer mentioned, do you have an extra pre tube that you can swap in, just to check? I've seen the PI cause problems like that on other amps. It's a good idea to keep an extra pre around anyway. It does sound like a power tube issue though if it's volume related.

not really... i was planning on getting a 5751 though to improve my drive channel's sound. but i can't find a single 5751 'round here .
Last edited by The red Strat. at May 1, 2008,
#20
this happent to me the other day, but it wasnt the amp, it was the guitar, so if I were you I would try another guitar through to your amp, and another amp with your guitar..
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#21
this happened to my amp, one of the preamp tubes was going bad and the amp would randomly lose volume, i had a couple spare preamp tubes and switched one out at a time and found the bad tube and it went back to its full volume again with a different tube. My amp is a hybrid so it doesn't have power tubes in it.
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