Bought a VHT 2/90/2 poweramp today and Channel A on it just died on me. I have to see what the damage is.

Anyone know any good techs around this area (im in taunton)?

I'll call up Boston Guitar Works tomorrow, not sure if they have a tech.

i can see if I can find anything in there for you... I'll take the multi meter to everthing and try to find a bug.

Alright.

Well Channel A still makes noise, just like 10% total volume. I have a fear that something on the board may have burned out. Definitely not tubes as Channel B is fine, right?

how many tubes does it have total, 4 right? Unless they are riding the power tubes really hard it should share the tubes for both channels.

dude, sounds like a tube failure. do the old 'tap the tubes with a pencil' to find out which is the culprit.

Too late to test them now I suppose, but i will in the morning.

Given that it's a stereo poweramp, perhaps each channel has its own set of tubes? I mean, they each have separate inputs/outputs for preamps and cabs.

of course each channel has its own set.

I'll be so happy if it's just tubes.

i betcha it is kid. happened once on my fitty one fitty, it was a bunk 12ax7. my prosonic just did the same thing yesterday at practice, im going to check it out tomorrow. i bet its the same thing.

drop in gain/volume means pre amp tube failure 8 times out of 10.

dood i think the name is 'high tech'--they are out of the north shore i believe.
if i am wrong about the name then blue and i are using it for our radio gear show.

or 4 out of 5 if you like them odds better

I'll have to pick up a 12ax7 tomorrow and hope it was my phase inverter then

Not to change the subject, but how would you change the input jack in a xxl?

flux capacitor.

BTTF

you would obtain a soldering iron, and knowledge of electronics wiring.

my 5150 has the same stock tubes when i bought it 5 years ago...

should i change them?

ROFLOLZ

i hope you're not serious.


HAI GUIZE SHOULD I NOTT PERFORM TEH ROUTINE MAINTENANCE ON TEH MAP?

preamp tubes were not my problem. next course of action I believe is to bring it to a tech

indeed sir. the only place i can recommend off the top of my head is aztech electronics in watertown.

Bring it to Your Mother!!! They're located in Fall River I believe.

Might actually be sending it to VHT

ooooh la la. you buy it new?

No.. but I want to see if they'll work on it anyways. I know Mesa prefers to work on their own amps so I'm hoping VHT will too. Have to wait until monday unfortunately.

The problem here is it was definitely damaged during shipping because one of the rack ears is bent a bit and I saw pictures of it before it was shipped. The packing wasn't that great either, which is unusual for a guy like mctallica1. Oh well.. have to see what VHT says.

i freaking hate it when people dont pack their shit right.

I'll pack your shit in all day blue.

K. But how do you open the infernal machine up? It has 4-6 screws in the back but it doesn't open.

just ask it nicely....DURRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRR

Please?

remove the feet, I beleive they hold in the chassis. Slide the chassis out and solder in a new input jack. If you are close to me I can do this real cheap.

Nashua and Thanks.

nashua = far haha