Hoffman Amplifiers Tube Amplifier Forum
Amp Stuff => EZ Board postings => Topic started by: Geezer on June 17, 2005, 09:45:56 pm
-
Hoffman Amplifiers
> Tube Amp Building - Tweaks - Repairs
> Acoustic 165
<< Prev Topic | Next Topic >>
Author Comment
mojogroff
Junior tube assistant
Posts: 49
(3/3/04 8:35 am)
Acoustic 165
--------------------------------------------------------------------------------
Anybody out there familiar with an Acoustic 165. I'm trying to revive one for a friend. The amp hasn't been used in several years. I replaced the fuse holder and got sound but the amp sounds horrible. I plan to replace all of the filter caps. But I'm not finding the exact replacements what should I use in place of a 60mfd/350v. I'm not sure what the caps do because I'm not that versed in amps with circuit boards.
Also, should I replace the Mallory 40mfd/500v, 40mfd/500v cap cans. They are twist lock type and I can't find a direct replacement for them. Should I change to a clamp type can like a Marshall.
Thanks for any help
Platefire
Guest comedian
Posts: 623
(3/3/04 12:42 pm)
Re: Acoustic 165
--------------------------------------------------------------------------------
Hay mojo
Isn't all Acoustic Amps solid state??? This is mostly a all tube
amp forum. On older tube amps instead of replacing the can we usually install idividual filter caps in a clear available space
on terminal strips or build a small board for them. If you
look at Dougs info on this site he gives you several ways to do
that. Plate
Edited by: Platefire at: 3/3/04 12:43 pm
mojogroff
Junior tube assistant
Posts: 50
(3/3/04 3:01 pm)
Re: Acoustic 165
--------------------------------------------------------------------------------
This amp is tube with a switchable FET preamp..which I know nothing about..I believe the amp to be a mesa boogie clone built around 1980
stan buczko
Junior tube assistant
Posts: 69
(3/3/04 10:36 pm)
Re: Acoustic 165
--------------------------------------------------------------------------------
Yes!! PC fun.
I have a model 160 which is just the head. They were killer amps in their time. I replaced all of the electrolytic caps in mine last year. For the 60mf/350vdc i used a 100uf/350vdc. I also went with the 50uf50uf/500vdc cans with clamp brackets for the 40uf/450vdc caps. Good luck Stan
mojogroff
Junior tube assistant
Posts: 51
(3/4/04 8:11 am)
Re: Acoustic 165
--------------------------------------------------------------------------------
Thanks Stan!!
<< Prev Topic | Next Topic >>
Topic Commands
Click to receive email notification of replies
jump to: Tube Amp Building - Tweaks - Repairs (New)New Product Suggestions (New)Praises - Complaints - Suggestions (New)Buy - Sell- Trade (New)Archives (New)
- Hoffman Amplifiers - Tube Amp Building - Tweaks - Repairs - Hoffman Amplifiers -
Powered By ezboard® Ver. 7.32
Copyright ©1999-2005 ezboard, Inc.