It is currently Mon Mar 16, 2020 6:20 pm

All times are UTC - 7 hours



Post new topic Reply to topic  [ 3 posts ] 
Author Message
Post subject: Marshall Valvestate Problem
Posted: Tue Aug 12, 2008 9:15 am
Offline
Hobbyist
Hobbyist
User avatar

Joined: Sun Jan 13, 2008 10:40 am
Posts: 16
Location: Monterey
Okay, I know this is a Fender forum but I want help with my Marshall, I hope this is okay. If it's not, feel free to just remove this thread.

Well, this is my situation...

I bought this Marshall Valvestate S80, 40 watts (model 8240), from a friend today. I got it pretty cheap because we knew that it wasn't in it's best condition.

Anyways, directly when I turn the amp on, I get a loud buzz/hum or whatever you could call it. It's there even when all the knobs are turned off and I tried all the buttons but it won't go away.

One really wierd thing is that the buzz seems to be in the key of G (?!), so when I play some licks or whatever, in G, they sound better than it does in any other key.

My friend telled me about how it first got there. I wasn't there when it happend so I'm not entirely sure but this is what he said happened;
He just got it, but I think it was from the 90's or something, turned it on and it played really good, then he put on some reverb. But he was rehearsing with his band so I guess he took the volume all the way up. Then he took his (dist?)pedal between the amp and the guitar but when he turned it on he heard some kind of sound/pop/boom, I don't know. And after that, it sounded really wierd, kind of like it does now, I guess. But then when he switched to the clean channel it was all good.

The next day when he turned it on though, it sounded just like it did when the accident had happened the day before and with the really loud hum/buzz.

I have changed the tube to a new one and I believe that the sound is improved but with that buzz it's hard to even hear it.

But what could be the cause of this buzz? Broken/burnt ground, bad transistor or some cooked component? Well, I don't know..

I'm sorry for this wall of text, but does anyone of you have an idea what could have happend and if there's any way to make it work good again, what would it cost?

Basically, how can I get rid of the bad sound and the really loud buzz, which comes directly when I turn the amp on?

I want all of your thoughts/ides that can help me in any kind of way! Thank you very much!


Top
Profile
Fender Play Winter Sale 2020
Post subject:
Posted: Tue Aug 12, 2008 9:40 am
Offline
Rock Star
Rock Star
User avatar

Joined: Wed Jun 13, 2007 7:02 am
Posts: 8609
Location: Vacaville, CA USA
There are a couple of excellent Marshall Amp forums that would probably be able to help you.

_________________
Chet Feathers

Authorized TonePros Dealer
Authorized WD Music Products Dealer
F/A Official Southpaw Compliance Certification Tester http://faamps.com/

http://www.facebook.com/cafeathers


I didn't Lose my mind, I traded it for this guitar.


Top
Profile
Post subject:
Posted: Mon Aug 25, 2008 1:46 pm
Offline
Hobbyist
Hobbyist

Joined: Sun May 25, 2008 6:02 pm
Posts: 45
I try to never speak unfavorably of any one or any thing, but I've found marshall to be the most overated music product with more staying power than any product in the history of mass production. On an ironic note, the best sounding marshall I ever owned was the early valvestate 8100. I didn't own it long enough to know if it was going to be reliable or not, due to an illness I had to sell it. According to my research, the hybrid marshall isn't famous for relability. Good luck to you though, if you find you self think about selling it or parting it out I wouldn't hesitate. theres a good speaker there and a good cabinet there you could use as an ex cab.


Top
Profile
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 3 posts ] 

All times are UTC - 7 hours

Fender Play Winter Sale 2020

Who is online

Users browsing this forum: No registered users and 2 guests


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum

Search for:
Jump to: