It is currently Mon Mar 16, 2020 7:15 pm

All times are UTC - 7 hours



Post new topic Reply to topic  [ 4 posts ] 
Author Message
Post subject: WTF is this squeaking thats freaking me out?!
Posted: Sun Aug 17, 2008 10:21 am
Offline
Rock Star
Rock Star
User avatar

Joined: Tue Feb 26, 2008 6:13 am
Posts: 3317
Location: The Alpha Quadrant.
I got into my bands rehearsal room the other day and turned on my HRDville 410 and this weird squeaking noise kept coming out in wee bursts?

I know I'm going to be told to take it to a tech but can any of you guys tell me whats wrong with it. It's recently had it's preamp tubes changed and changed again.

Thank you as always!
CC


Top
Profile
Fender Play Winter Sale 2020
Post subject:
Posted: Tue Sep 09, 2008 10:18 am
Offline
Hobbyist
Hobbyist

Joined: Mon Aug 04, 2008 2:34 pm
Posts: 68
Location: Indiana
Were the tubes matching? Biased correctly?
Incoming voltage to you amp will effect how the
overall power stage of your amp. I f your tubes
were biased low and the incoming ac voltage is low
you'll have problems. If biased high at say even
110 vac coming from the outlet and then you go jam
at a buddy who has 123 vac at the outlet, you amp
can overheat and reduce tube life because they are
running "hotter". This voltage flucuation can cause an
amp to sound "weak" and your like why does my amp
seem whimpy today?


Top
Profile
Post subject:
Posted: Tue Sep 09, 2008 10:19 am
Offline
Hobbyist
Hobbyist

Joined: Mon Aug 04, 2008 2:34 pm
Posts: 68
Location: Indiana
Were the tubes matching? Biased correctly?
Incoming voltage to you amp will effect how the
overall power stage of your amp. I f your tubes
were biased low and the incoming ac voltage is low
you'll have problems. If biased high at say even
110 vac coming from the outlet and then you go jam
at a buddy who has 123 vac at the outlet, you amp
can overheat and reduce tube life because they are
running "hotter". This voltage flucuation can cause an
amp to sound "weak" and your like why does my amp
seem whimpy today?


Top
Profile
Post subject:
Posted: Tue Sep 09, 2008 10:29 am
Offline
Rock Star
Rock Star
User avatar

Joined: Wed Jun 13, 2007 7:02 am
Posts: 8609
Location: Vacaville, CA USA
Possibly a microphonic tube.

_________________
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
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 4 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: