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Hoffman Amps Forum image Author Topic: Need a power transformer for a Champ  (Read 2591 times)

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Offline Rickinbeachcrest

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Need a power transformer for a Champ
« on: September 01, 2021, 05:57:15 pm »
I'm in the process of gathering parts for the build of a Hoffman Champ.  I see that Doug recommends the Mojo 759 with a high voltage of 290 for the power trans.  Mojo is out of stock on these trans, so I've been looking else where.

The closest I have found is 325 v.

https://shop.amppartsdirect.com/collections/transformers/products/fender-champ-style-power-transformer-apd-8019h-by-heyboer

Would this trans from Amp Parts Direct work?

Thanks.
Rick

Offline sluckey

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Re: Need a power transformer for a Champ
« Reply #1 on: September 01, 2021, 06:15:08 pm »
A schematic, layout, and hi-rez pics are very useful for troubleshooting your amp. Don't wait to be asked. JUST DO IT!

Offline jordan86

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Re: Need a power transformer for a Champ
« Reply #2 on: September 01, 2021, 07:18:35 pm »
Hammond 290AX would be my choice.

^^^What Sluckey said! ^^^

I just built a Princeton with a 290ax, last year. They can possibly be found for less at Hawk Electronics. 290ax has two HT options as well, high and low voltage 

Offline Rickinbeachcrest

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Re: Need a power transformer for a Champ
« Reply #3 on: September 01, 2021, 09:26:25 pm »
Thanks for the quick reply.  Sounds like the way to go.
Rick

 


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