Welcome To the Hoffman Amplifiers Forum

September 06, 2025, 04:32:07 pm
guest image
Welcome, Guest. Please login or register.
-User Name
-Password



Hoffman Amps Forum image Author Topic: What voltage filter caps for brown-face Bassman?  (Read 2704 times)

0 Members and 1 Guest are viewing this topic.

Offline markmalin

  • Level 3
  • ***
  • Posts: 827
  • Malin Sweet Loraine
    • Malin Amplification
Hoffman Amps Forum image
What voltage filter caps for brown-face Bassman?
« on: November 08, 2010, 07:48:21 pm »
Hi guys,

I've got a brown face (tan tolex) Bassman on my bench.  The filter caps are toast so I wanted to replace them with Sprague Atoms.  Thing is, the caps that came in the amp are 20 uf 525V, and I see the only Atoms that will fit in the doghouse are 20 uf 500V.  Is it necessary to find some alternat caps at 525V, or can I go with the 500V ones?

Thanks
Mark.
"... there are Flying V's and then there are the ones shaped like peanuts..."  - my son at age 9

Offline bigsbybender

  • Level 3
  • ***
  • Posts: 1944
  • Hack Of All Trades
    • Tube Amp Gallery
Hoffman Amps Forum image
Re: What voltage filter caps for brown-face Bassman?
« Reply #1 on: November 08, 2010, 08:08:27 pm »
The 500v Atoms will be fine.

You should be able to get away with 450-475v caps in that amp.


j.
Open Minded But Fixed Bias

Offline markmalin

  • Level 3
  • ***
  • Posts: 827
  • Malin Sweet Loraine
    • Malin Amplification
Hoffman Amps Forum image
Re: What voltage filter caps for brown-face Bassman?
« Reply #2 on: November 08, 2010, 09:09:26 pm »
The 500v Atoms will be fine.

You should be able to get away with 450-475v caps in that amp.


j.

Great.  Thanks for the input.

Mark.
"... there are Flying V's and then there are the ones shaped like peanuts..."  - my son at age 9

 


Choose a link from the
Hoffman Amplifiers parts catalog
Mobile Device
Catalog Link
Yard Sale
Discontinued
Misc. Hardware
What's New Board Building
 Parts
Amp trim
Handles
Lamps
Diodes
Hoffman Turret
 Boards
Channel
Switching
Resistors Fender Eyelet
 Boards
Screws/Nuts
Washers
Jacks/Plugs
Connectors
Misc Eyelet
Boards
Tools
Capacitors Custom Boards
Tubes
Valves
Pots
Knobs
Fuses/Cords Chassis
Tube
Sockets
Switches Wire
Cable


Handy Links
Tube Amp Library
Tube Amp
Schematics library
Design a custom Eyelet or
Turret Board
DIY Layout Creator
File analyzer program
DIY Layout Creator
File library
Transformer Wiring
Diagrams
Hoffmanamps
Facebook page
Hoffman Amplifiers
Discount Program


password