The Boogie Board

Discussion Forum for Mesa Boogie Products
It is currently Sat Aug 19, 2017 9:00 pm

All times are UTC - 6 hours [ DST ]




Post new topic Reply to topic  [ 3 posts ] 

Am I wasting my time
Yes. Idiot! 0%  0%  [ 0 ]
No. You're really smart and I'm proud of you for trying and learning something new even if your dad isn't. 100%  100%  [ 1 ]
Total votes : 1
Author Message
PostPosted: Tue Feb 21, 2017 10:36 pm 
Offline
Bottle Rocket

Joined: Tue Feb 21, 2017 10:19 pm
Posts: 1
So eBay can be wonderful and terrible. I thought I was lucky to get an old Mesa .50 caliber for 250 because guys, I just want to have an obnoxiously middy thrash tone. But, some people are awful and will list an amp as "working. Turns on" even when it was clearly on fire at some point. Tech at Mesa took one look at my JJs and said there was nothing he could do.
After reading three forum posts and buying a multimeter, I've pretty much got it narrowed down to leaky coupling caps messing with the bias, or out of spec 470 ohm resistors on pin 9 of the power tubes affecting the g2 voltage. These are all things I learned in a few hours of research (maybe years of experience have led this tech to see a hopeless situation? Maybe he assumes that any non standard equipment makes a Mesa garbage?). Anyway, does this sound reasonable? Should I look at other stuff? And most importantly, since this is clearly a project amp not a collectable, what are some crazy mods I could do to it?


Top
 Profile  
 
PostPosted: Thu Feb 23, 2017 2:43 am 
Offline
Mark II

Joined: Sat Aug 05, 2006 11:15 pm
Posts: 114
Location: San Jose, CA
Some amps definitely need a cap job, but if Mesa can't fix it I might just sell it for a loss

_________________
2006 Fender Lite Ash Strat
2012 US Gibson Firebird V
1990 Boogie Mark 1 Reissue
2-12 Sapele Cab

Music: from blues to thrash and back! (allman bros, exodus, saxon, tcf, robert johnson)


Top
 Profile  
 
 Post subject: ThiS link might work
PostPosted: Thu Feb 23, 2017 3:01 am 
Offline
Mark II

Joined: Sat Aug 05, 2006 11:15 pm
Posts: 114
Location: San Jose, CA
Some hope! as in hope you see the link

viewtopic.php?f=27&t=71553&start=15

_________________
2006 Fender Lite Ash Strat
2012 US Gibson Firebird V
1990 Boogie Mark 1 Reissue
2-12 Sapele Cab

Music: from blues to thrash and back! (allman bros, exodus, saxon, tcf, robert johnson)


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

All times are UTC - 6 hours [ DST ]


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:  
Powered by phpBB® Forum Software © phpBB Group