Hoffman Amplifiers Tube Amplifier Forum

Amp Stuff => Tube Amp Building - Tweaks - Repairs => Topic started by: atmars on July 18, 2010, 12:31:58 am

Title: Replicate a vintage transformer
Post by: atmars 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

Title: Re: Replicate a vintage transformer
Post by: FYL 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+.
 

Title: Re: Replicate a vintage transformer
Post by: LooseChange on July 18, 2010, 07:56:43 am

What is the transformer from?  Check with Mercury Magnetics... They do this sort of stuff.

Title: Re: Replicate a vintage transformer
Post by: RicharD 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.

Title: Re: Replicate a vintage transformer
Post by: atmars 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?

Title: Re: Replicate a vintage transformer
Post by: DummyLoad 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.