telenash
First Lieutenant  Posts: 3 Registered: 8/25/2007 Status: Offline
|
 posted on 8/25/2007 at 14:37 |
I have a marshall 40w amp that started having intermitent trouble in my
house a few years ago....it went out eventually, went to get it fixed and
it went out again.
so I went a bought a Peavy Classic 30 and started having the same
problems.
the problem is after a while of being on (on some days) it starts to lose
output and the volume goes down and them comes back up... and back and
forth and there is some scratchy sounds comming through the speaker. Today
no volume at all or I trurn all the way up and it's quiet!
PLEASE Help...I going to go cry now
|
| |
tattoo
Captain   Posts: 286 Registered: 7/31/2004 Status: Offline |
posted on 8/25/2007 at 15:47, Reply 1 |
did you check your power tubes  ____________________
Get the name to sell first then the trend makes millions.
|
| |
telenash
First Lieutenant Posts: 3 Registered: 8/25/2007 Status: Offline |
posted on 8/25/2007 at 17:39, Reply 2 |
thanks... 
how do i check the power tubes?
the Peavey started doing it when it was brand new. just a coincidence that
they are both doing this? both power tube issues
I am convinced its my house. its haunted or something. SOO frustrating
i changed all the outlets in my house because of this, had an electrician
make sure everything was good and right now i am checking the voltage
comming through the same surge protector my amp is plugged into...amp keeps
losing volume and comes back but there is no change in the voltage.
its an old house built in 65. anyone heard of problems with older houses
f9cking up amps
[Edited on 8/25/2007 by telenash]
[Edited on 8/25/2007 by telenash]
|
| |
brian
Moderator   Posts: 1075 Registered: 12/22/2003 Status: Offline |
posted on 8/27/2007 at 15:03, Reply 3 |
Just wondering if it does it at a gig? Have you tried different guitars?
Sometimes the volume pot will get dirty and "crackle pop" and the volume
will fade. Try it at another location and see what happens if the guitar is
fine. It the power surges most likely the fuse will blow and protect the
amp.
Kinda hard to pin-point without seeing or hearing the amp.
Let us know
|
| |
Telefreak
Moderator  Posts: 468 Registered: 1/12/2004 Status: Offline |
posted on 8/27/2007 at 21:05, Reply 4 |
Good point.
A friend of mine had a Boss multi effects unit that wouldn't work in one
venue, it just didn't like the electrics at that venue. ____________________
Technology, not technique
|
| |
telenash
First Lieutenant Posts: 3 Registered: 8/25/2007 Status: Offline |
posted on 8/27/2007 at 22:25, Reply 5 |
i thought the pedals might be an issue so I tried plugging directly into
the amp with the same results, on occasion. that is what's so frustrating.
it's sporatic, and on some days everything is fine all day. then the next
day it's like after ten mintues it starts acting up and the symptoms
return.
The BIG issue is that my Marshall was damaged. So, what would do that? I
could smell it frying and had to take it in.
The tube amp sounds like too much electicity is running through it at times
and I can hear the tubes like, humming loudly. I measured the voltage
comming through the outlet liek I said earlier and it was around 120v for
an extended period of time. i was looking for surges but there were none.
|
| |
Telefreak
Moderator Posts: 468 Registered: 1/12/2004 Status: Offline |
posted on 8/28/2007 at 07:42, Reply 6 |
Frying?
Well, the tubes can get really hot so it there's anything on them it'll get
burnt off.
As for the noise they're making, if it's really loud you might want to
think about changing the valves ____________________
Technology, not technique
|
| |
