Welcome To the Hoffman Amplifiers Forum

September 06, 2025, 05:13:05 pm
guest image
Welcome, Guest. Please login or register.
-User Name
-Password



Hoffman Amps Forum image Author Topic: Replicate a vintage transformer  (Read 3129 times)

0 Members and 1 Guest are viewing this topic.

Offline atmars

  • Level 2
  • **
  • Posts: 160
Hoffman Amps Forum image
Replicate a vintage transformer
« on: July 18, 2010, 12:31:58 am »
Does anyone have any experience with or can recommend a good resource to have a vintage transformer blueprinted and wound? I have a vintage output transformer that I would be interested in replicating and I am wondering who can do this work, how difficult is it, and what it might cost?

Any ideas?

Thanks

Offline FYL

  • Level 4
  • *****
  • Posts: 2313
Hoffman Amps Forum image
Re: Replicate a vintage transformer
« Reply #1 on: July 18, 2010, 05:56:55 am »
All specialized winders/manufacturers offer this kind of service. Expect to pay $250 and more for the reverse engineering part, plus costs associated with building a single copy, say $100+.
 

Offline LooseChange

  • SMG
  • Level 4
  • *****
  • Posts: 3511
  • Keep it greasy so it goes down easy.
    • Fix Your Darn Amps
Hoffman Amps Forum image
Re: Replicate a vintage transformer
« Reply #2 on: July 18, 2010, 07:56:43 am »
What is the transformer from?  Check with Mercury Magnetics... They do this sort of stuff.
Call me Dan
www.fydamps.com

Offline RicharD

  • SMG
  • Level 4
  • *****
  • Posts: 2057
    • Toxic Water
Hoffman Amps Forum image
Re: Replicate a vintage transformer
« Reply #3 on: July 18, 2010, 08:07:42 am »
Heyboer will do it too, as will Edcor.  99% chance they will have to destroy the original in the process.  Something to consider.  Today's iron, copper, and insulation are different from days of old.  What you get back should be electrically and mechanically the same, but expect some acoustical/psychoacoustical differences.  Chances are, unless it's something completely oddball, there's already a clone.

Offline atmars

  • Level 2
  • **
  • Posts: 160
Hoffman Amps Forum image
Re: Replicate a vintage transformer
« Reply #4 on: July 18, 2010, 09:50:29 pm »
Yeah -  it's an oddball transformer. i thought there was some place in North Carolina that people had recommended, but maybe I saw it on another forum. Has anyone here actually done it?

Offline DummyLoad

  • SMG
  • Level 5
  • *****
  • Posts: 5791
Hoffman Amps Forum image
Re: Replicate a vintage transformer
« Reply #5 on: July 18, 2010, 10:58:25 pm »
yes, i had heyboer clone a PT and OT. excellent work - takes a while though, and isn't cheap.

 


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