Welcome To the Hoffman Amplifiers Forum

September 06, 2025, 10:17:31 am
guest image
Welcome, Guest. Please login or register.
-User Name
-Password



Hoffman Amps Forum image Author Topic: Identity a Revolver Board  (Read 3427 times)

0 Members and 1 Guest are viewing this topic.

Offline iquester@att.net

  • Level 1
  • *
  • Posts: 8
  • I love Tube amps
Hoffman Amps Forum image
Identity a Revolver Board
« on: April 29, 2024, 09:04:22 am »
I hope someone here can help me. I bought the below pictured board from Revolver Amps about 10 years ago or more. Having moved several times, I  never did build it out into an amp. I lost all documentation and am now trying to identify the circuit. I’m hoping you can help since I reached out to an old email address for Charles Prest who originally built the board. But I have had no reply. Any help you can give me would be much appreciated. — Mike Gardner

Offline bmccowan

  • Level 3
  • ***
  • Posts: 1744
  • Better builder than player
Hoffman Amps Forum image
Re: Identity a Revolver Board
« Reply #1 on: April 29, 2024, 09:18:47 am »
I'd start here:  https://reverb.com/item/61277892-revolver-amplification-tweed-deluxe-5e3-clone-vintage-jensen-p12q
But I then suggest that you draw out the board with the component values.
From there you can determine if its a standard Fender schematic.
Mac
“To my surprise, when I opened my eyes, I was the victim of a great compromise.”
John Prine

Offline iquester@att.net

  • Level 1
  • *
  • Posts: 8
  • I love Tube amps
Hoffman Amps Forum image
Re: Identity a Revolver Board
« Reply #2 on: April 29, 2024, 10:29:36 am »
I found a Tweed Tremolux Fender circuit schematic with the attached layout diagram and I looks like maybe that’s it. Any confirmation or other information?  — Mike Gardner

Offline iquester@att.net

  • Level 1
  • *
  • Posts: 8
  • I love Tube amps
Hoffman Amps Forum image
Re: Identity a Revolver Board
« Reply #3 on: April 29, 2024, 10:32:29 am »
Fender docs

Offline sluckey

  • Level 5
  • *******
  • Posts: 5075
    • Sluckey Amps
Hoffman Amps Forum image
Re: Identity a Revolver Board
« Reply #4 on: April 29, 2024, 10:56:12 am »
Yes, that's it. Tremolux 5E9-A. The style of that board screams Hoffman style. Nice layout. High quality and neat board. One brown cap has a lead that was never soldered.

cprest is a Hoffman member. He joined in 2006, posted 13 messages, and was last active in 2010.
A schematic, layout, and hi-rez pics are very useful for troubleshooting your amp. Don't wait to be asked. JUST DO IT!

Offline iquester@att.net

  • Level 1
  • *
  • Posts: 8
  • I love Tube amps
Hoffman Amps Forum image
Re: Identity a Revolver Board
« Reply #5 on: April 29, 2024, 05:37:23 pm »
Thank you for all the help!

Offline acheld

  • Level 3
  • ***
  • Posts: 1263
  • No well conceived plan survives the event.
Hoffman Amps Forum image
Re: Identity a Revolver Board
« Reply #6 on: April 30, 2024, 10:52:23 am »
You can find him at LinkedIn, searching for Revolver Amplification.  Looks like his business is closed, but he should still be around. 

Offline kagliostro

  • Level 5
  • *******
  • Posts: 7738
Hoffman Amps Forum image
Re: Identity a Revolver Board
« Reply #7 on: April 30, 2024, 12:26:45 pm »
Quote
One brown cap has a lead that was never soldered.

Seems that the missing soldering is because there will be a wire from that turret to the wiper of the Volume pot

Franco
The world is a nice place if there is health and there are friends

Offline sluckey

  • Level 5
  • *******
  • Posts: 5075
    • Sluckey Amps
Hoffman Amps Forum image
Re: Identity a Revolver Board
« Reply #8 on: April 30, 2024, 12:35:43 pm »
Quote
One brown cap has a lead that was never soldered.

Seems that the missing soldering is because there will be a wire from that turret to the wiper of the Volume pot
Maybe. But there will be more than 20 more wires connected to the board and the components are already soldered. I rather believe that turret was overlooked.
A schematic, layout, and hi-rez pics are very useful for troubleshooting your amp. Don't wait to be asked. JUST DO IT!

Offline kagliostro

  • Level 5
  • *******
  • Posts: 7738
Hoffman Amps Forum image
Re: Identity a Revolver Board
« Reply #9 on: April 30, 2024, 01:50:31 pm »
Yes, may be

Franco
The world is a nice place if there is health and there are friends

Offline bmccowan

  • Level 3
  • ***
  • Posts: 1744
  • Better builder than player
Hoffman Amps Forum image
Re: Identity a Revolver Board
« Reply #10 on: May 01, 2024, 06:12:42 pm »
Mike, If you are anything like me (good luck) and you don't go right to building this amp, you should take a sharpie and write 5E9-A on the board. I cannot count how many times I have set a partially built amp project aside for a few months and then come back and thought, "now what the Hell was I doing here?"
But I hope you do move forward and build it, and keep us looped in. I have never built or played this model but the reports are very enthusiastic. I did build a Gibson GA-18T which is pretty similar - great amp.
Cheers.
Mac
“To my surprise, when I opened my eyes, I was the victim of a great compromise.”
John Prine

Offline iquester@att.net

  • Level 1
  • *
  • Posts: 8
  • I love Tube amps
Hoffman Amps Forum image
Re: Identity a Revolver Board
« Reply #11 on: May 01, 2024, 06:20:30 pm »
Thanks for the good idea. I saved a photo in my file lis this.

Offline iquester@att.net

  • Level 1
  • *
  • Posts: 8
  • I love Tube amps
Hoffman Amps Forum image
Re: Identity a Revolver Board
« Reply #12 on: May 01, 2024, 06:24:45 pm »
Found several boards in the same box from storage. Likely I will post for sale. Can’t build em all.

Offline bmccowan

  • Level 3
  • ***
  • Posts: 1744
  • Better builder than player
Hoffman Amps Forum image
Re: Identity a Revolver Board
« Reply #13 on: May 01, 2024, 08:15:20 pm »
So you are like me! :laugh:
Mac
“To my surprise, when I opened my eyes, I was the victim of a great compromise.”
John Prine

Offline iquester@att.net

  • Level 1
  • *
  • Posts: 8
  • I love Tube amps
Hoffman Amps Forum image
Re: Identity a Revolver Board
« Reply #14 on: May 02, 2024, 01:23:34 pm »
And a few more in the same place.

Offline sluckey

  • Level 5
  • *******
  • Posts: 5075
    • Sluckey Amps
Hoffman Amps Forum image
Re: Identity a Revolver Board
« Reply #15 on: May 02, 2024, 02:51:18 pm »
The board you labeled 5F1 Tweed Champ is actually an AA764 Champ.
A schematic, layout, and hi-rez pics are very useful for troubleshooting your amp. Don't wait to be asked. JUST DO IT!

Offline iquester@att.net

  • Level 1
  • *
  • Posts: 8
  • I love Tube amps
Hoffman Amps Forum image
Re: Identity a Revolver Board
« Reply #16 on: May 02, 2024, 03:09:57 pm »
Thanks for the correction— I have updated the file. Appreciate it.

 


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