Welcome To the Hoffman Amplifiers Forum

September 08, 2025, 03:48:10 am
guest image
Welcome, Guest. Please login or register.
-User Name
-Password



Hoffman Amps Forum image Author Topic: Power Transformer  (Read 37812 times)

0 Members and 1 Guest are viewing this topic.

Offline taylorc315

  • Level 2
  • **
  • Posts: 148
  • I love Tube amps
Hoffman Amps Forum image
Re: Power Transformer
« Reply #200 on: May 26, 2015, 05:14:14 pm »
I've traced all the wires and can't find anything. Does the wire that laces the turrets need to be a certain gage? Were you able to see through the mess at all?

Offline sluckey

  • Level 5
  • *******
  • Posts: 5075
    • Sluckey Amps
Hoffman Amps Forum image
Re: Power Transformer
« Reply #201 on: May 26, 2015, 05:47:14 pm »
Quote
I've traced all the wires and can't find anything.
The problem(s) is still right in front of you.
Quote
Does the wire that laces the turrets need to be a certain gage?
I use 22AWG solid tinned buss wire.
Quote
Were you able to see through the mess at all?
No. Well, I can see certain areas OK but other areas of interest are not visible. I would have to have my hands on that amp to see what I need to see in order to fix it.
A schematic, layout, and hi-rez pics are very useful for troubleshooting your amp. Don't wait to be asked. JUST DO IT!

Offline taylorc315

  • Level 2
  • **
  • Posts: 148
  • I love Tube amps
Hoffman Amps Forum image
Re: Power Transformer
« Reply #202 on: May 26, 2015, 06:18:44 pm »
You do see some issues? Is there any particular areas that I can maybe see if I can get better pictures?

Offline taylorc315

  • Level 2
  • **
  • Posts: 148
  • I love Tube amps
Hoffman Amps Forum image
Re: Power Transformer
« Reply #203 on: May 26, 2015, 06:58:58 pm »
I.also don't have a problem sending this to you if that is an option. I just need a lot more knowledge and guidance. I am going to start another one and take it step by step, I got into a bit of a hurry with this one. I'm not going to make the same mistakes. I used 20 gage copper wire instead of the tinned that you use, is that an issue?

Offline John

  • Level 3
  • ***
  • Posts: 1895
Hoffman Amps Forum image
Re: Power Transformer
« Reply #204 on: May 26, 2015, 08:48:22 pm »
Quote
I am going to start another one and take it step by step,


I don't think you need to do that, just de-construct this one. You might just find the mistake when you're taking stuff apart. Use it as a learning experience. Highlight each connection/wire on the schematic as you take it off. For desoldering, braid is your friend. :)



Tapping into the inner tube.

Offline taylorc315

  • Level 2
  • **
  • Posts: 148
  • I love Tube amps
Hoffman Amps Forum image
Re: Power Transformer
« Reply #205 on: May 31, 2015, 01:31:32 pm »
I've deconstructed the amp and now just waiting for some tinned buss wire to start over. I think that the wire I used was not adequate for the job.

Offline sluckey

  • Level 5
  • *******
  • Posts: 5075
    • Sluckey Amps
Hoffman Amps Forum image
Re: Power Transformer
« Reply #206 on: May 31, 2015, 01:36:09 pm »
I've deconstructed the amp and now just waiting for some tinned buss wire to start over. I think that the wire I used was not adequate for the job.
I don't think the wire was a factor. Please start a new thread when you post about the rebuild. Good luck.
A schematic, layout, and hi-rez pics are very useful for troubleshooting your amp. Don't wait to be asked. JUST DO IT!

Offline taylorc315

  • Level 2
  • **
  • Posts: 148
  • I love Tube amps
Hoffman Amps Forum image
Re: Power Transformer
« Reply #207 on: May 31, 2015, 02:06:07 pm »
Thank you Sluckey. I will

Offline taylorc315

  • Level 2
  • **
  • Posts: 148
  • I love Tube amps
Hoffman Amps Forum image
Re: Power Transformer
« Reply #208 on: June 14, 2015, 10:12:07 am »
Hey I'm back : ) I re did everything I compared to my 72 Marshall as far as voltages it seems that everything looks good. I was wondering if my problem could be with the input and/or output jacks? I compared with the old Marshall but it doesn't have the same type jacks. Thanks

Offline taylorc315

  • Level 2
  • **
  • Posts: 148
  • I love Tube amps
Hoffman Amps Forum image
Re: Power Transformer
« Reply #209 on: June 14, 2015, 10:48:57 am »
I also uploaded more pics at the flicker account.
Tra412000.... Taylor hopefully this still works

Offline sluckey

  • Level 5
  • *******
  • Posts: 5075
    • Sluckey Amps
Hoffman Amps Forum image
Re: Power Transformer
« Reply #210 on: June 14, 2015, 10:51:37 am »
May I suggest you start a new thread? Since you have totally rebuilt this amp it's kinda like having a different amp with different issues. Probably most of the 200+ messages in this thread are not pertinent to this rebuild. We need to know  your new issues, voltages, pictures, etc.

EDIT... Also post the link to your new pics so we don't have to dig back through 200+ messages to find it.
« Last Edit: June 14, 2015, 11:03:08 am by sluckey »
A schematic, layout, and hi-rez pics are very useful for troubleshooting your amp. Don't wait to be asked. JUST DO IT!

Offline taylorc315

  • Level 2
  • **
  • Posts: 148
  • I love Tube amps
Hoffman Amps Forum image
Re: Power Transformer
« Reply #211 on: June 14, 2015, 11:29:25 am »
Will do

 


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