Welcome To the Hoffman Amplifiers Forum

September 08, 2025, 02:10:54 pm
guest image
Welcome, Guest. Please login or register.
-User Name
-Password



Hoffman Amps Forum image Author Topic: 4uf 25V cap in 62 bandmaster?  (Read 2380 times)

0 Members and 1 Guest are viewing this topic.

Offline Underwood

  • Level 1
  • *
  • Posts: 85
Hoffman Amps Forum image
4uf 25V cap in 62 bandmaster?
« on: November 19, 2011, 12:31:58 pm »
THe schematic for my 62 bandmaster calls for a 4Uf 25V cap.  Whoever had it before me put a 2uf 16V.  What should I replace it with?  I can't find any 4uf 25V caps.  Any suggestions?   Thanks

Offline tubenit

  • Global Moderator
  • Level 5
  • ******
  • Posts: 10274
  • Life is a daring adventure or nothing at all!
Hoffman Amps Forum image
Re: 4uf 25V cap in 62 bandmaster?
« Reply #1 on: November 19, 2011, 01:07:33 pm »
Use a 4.7uf 50v that Hoffman sells. It will be fine.

With respect, Tubenit

Offline PRR

  • Level 5
  • *******
  • Posts: 17082
  • Maine USA
Hoffman Amps Forum image
Re: 4uf 25V cap in 62 bandmaster?
« Reply #2 on: November 19, 2011, 02:51:07 pm »
How many different "BandMasters" did Fender make?

5E5  shows no 2 or 4u caps.
6G6  shows a 2u 25V in the trem modulator.
6G7A shows a 4u 25V in the trem modulator.

I would guess that the circuit will work very much the same with 2u, 4u, or 5u. If you are on a tweak-quest, try all values from 0.68u to 47u. However the differences may be quite slight (unless the cap is dead). 4.7u is the new 4u. If there is a 3.3u on your bench, it should work good also.

In all cases the voltage is under 4V, use at least a 6V cap. Values like 4u at 6V are so very small that they are usually stocked in 25V or 50V.

Yes, Hoffman's 4.7u 50V is the obvious choice if you are ordering parts. However older VCRs and cassette machines have 3.3u 4.7u 16V+ caps galore, if you are into scavenge.
« Last Edit: November 19, 2011, 02:53:46 pm by PRR »

Offline Underwood

  • Level 1
  • *
  • Posts: 85
Hoffman Amps Forum image
Re: 4uf 25V cap in 62 bandmaster?
« Reply #3 on: November 19, 2011, 04:50:54 pm »
  Yes it is the 6G7A. It is the cap in the trem modulator. It has a 2uf 16V cap there and I am going to try the 4.7uf 50V there and see what it does.

 


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