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dare i say...amp...problems?

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EMB5490  
15 Jan 2010 22:08 | Quote
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sigh yes. my volume 1 on my jmp (the treble boosted channel witht the extra capacitor) is creating static before the note, i think its v1 and not my newley aquired attenuator bc when i turn my v2 on through it, its fine. help...
case211  
15 Jan 2010 22:18 | Quote
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amp tech
EMB5490  
15 Jan 2010 22:26 | Quote
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ik...im just sick of driving 45 minutes and picking it up for the next day, if its tubes i got some and am gona do that meself, i know how. im gona do my tube flipping and flopping tommorow, (move around my preamp tubes see if the problem shifts...)
case211  
15 Jan 2010 22:49 | Quote
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that's not a bad idea, honestly if it saves you money go for it, but don't do anything that you aren't sure about(though I know you've heard that millions of times before)
EMB5490  
16 Jan 2010 06:56 | Quote
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yeah i have, especially as a kid, i just went to uncrew the preamp tubes to check them but it wouldnt go with a little bit of force so i didnt wana force it out of there so now am asking how do you take out a preamp tube

btw i think my problem is a power tube, however i have a groove tube preamp tube thats light is kinda dim but seems to be working... however it looks like 2 of my tubes are broken (power tubes) when i play and the staticy sound comes, a flashing blue spark comes and is in accordance with the static sound...
JoshJones  
16 Jan 2010 07:49 | Quote
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if you have an electronics store around, they will test your tubes typically for free

if you lived near me, i'd test em. It's a worthwhile purchase to by a tube tester, they usually are cheap
EMB5490  
16 Jan 2010 08:25 | Quote
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heres my conclusions me moving the power tubes doesnt cause change which leads me to believe 2 things,

1) the power tubes need changing at lest 2 arnt working

2) i think something may be up with one of the transformers/ brightness capacitor, i couldnt localize that problem...
Ozzfan486  
16 Jan 2010 11:17 | Quote
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I know this is off-topic but do all tube amps cause this much trouble?
JoshJones  
16 Jan 2010 13:30 | Quote
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you said extra cap in your original post? Was that soldered? If you are having no problems out of v2, I would bet your tubes are just fine and that the problem is on the board dealing with the v1.

I can't do much over the internet, it is sounding more like a hands-on job. But careful with the caps, they can put a hurt on you if you don't discharge them first.

and ozzfan, no they aren't any worse than a solid state reliability-wise but they are more difficult to fix for the layman
telecrater  
16 Jan 2010 14:28 | Quote
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With as much trouble as you have had with this amp, I'd sell it and get something more reliable. Every couple of weeks it seems you got something going on with it.
EMB5490  
16 Jan 2010 17:30 | Quote
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im starting to think what you think telecrater... its just i cant honestly buy an amp on ebay and consider myself to be "safe" with that buy, you never know what your getting really, just gotta get lucky, and theres no vintage ones in any stores...
EMB5490  
16 Jan 2010 20:40 | Quote
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@phip or anyone who knows about electrics in houses...\

could it be my house being the wiring isnt grounded, aluminum and at least 50 or 60 years old be causing my amp problems? i have some problems with my amp just from playing in my house, ( id ont get the problems when playing at friends houses...)
Ozzfan486  
16 Jan 2010 22:20 | Quote
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DUDE!!! Not to get you all giddy about this, but I'm pretty sure thats what it is! My amp does the same thing. It's not ALL the time, but when my mom runs the mixer [or beater idk. The electric thing that mixes cake batter] my amp cuts out. I actually had to shut it down and tell her to let me know when she's going to use it. And the kitchen is directly below my room. My house is pretty old too btw.

Ozz
EMB5490  
16 Jan 2010 22:29 | Quote
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yeah, and especially with the old circuitry and old amp it effects it more.

MY HOUSE IS SO OLD! "HOW OLD IS IT?" everythings connected on one circuit! thus if my sisters hair dryer blows the power off on the whole house (like it normally does) ALL the power goes off for the house! not just her room and stuff...

i remember when i used to play my amp in my room, my mom would run the treadmil, and id get signal problems, everytime she put her foot down my amp would flux in volume (go lower) and my moms not a heavy person...unless u consider 120 5'8 heavy...or round 5'8i m not sure...

anyways... it may be that, what i think i may do is put this amp out of commision, repair it, use it for gigs, at band practice (which is at a new house) and dont use it at my house...

OR to phip or any other electrician...

is it possible to run new wires (power outlet) from my basment to an acctuall power source not just to a deads end? in easier terms, would i make a plug in my basement soley for my amp that is grounded?
Ozzfan486  
16 Jan 2010 23:06 | Quote
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If the amp isn't DAMAGED you could always just get a little pocket amp that goes on batteries. lol. Beware of the tone though. For practice I wouldn't suspect it being to bad. Or just play acoustic at home if you have one.
les_paul  
16 Jan 2010 23:13 | Quote
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Maybe this would help.

http://www.guitarcenter.com/Ebtech-Hum-X-Hum-Exterminator-102570686-i1124325.gc
EMB5490  
17 Jan 2010 08:34 | Quote
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nah i doubt my amp is damaged permanantly.

i was thinking of getting a small little epi valve jr, i have a pedalboard so idc about nt have an eq or distoriton...
carlsnow  
17 Jan 2010 14:44 | Quote
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EMB5490 says:
i was thinking of getting a small little epi valve jr, i have a pedalboard so idc about nt have an eq or distoriton...


good thinking!
grab a 30 to 50watt 1x12" or somesuch, clubs hate big amps, and now that we are past the 70's and 80's 90% of large-room and outdoor gigs have good enough monitors and(50% o'the time) side-fills to negate the 'need' for anymore muscle than that. besides, lol, one day you will get really really sick of load-in/out with a head/cab setup ;~)

RAWK!
Cs

EMB5490  
17 Jan 2010 19:22 | Quote
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hey guys i think its my attenuator! good news maybe :)

and yeah im already sick of transporting it. but the sound is so good
EMB5490  
17 Jan 2010 19:39 | Quote
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seems i dont have speaker cables... would that make a difference?


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