Hoffman Amplifiers Tube Amplifier Forum

Amp Stuff => Tube Amp Building - Tweaks - Repairs => Topic started by: plaidzebra on January 30, 2016, 11:38:36 am

Title: Quick Mojo759 Transformer question
Post by: plaidzebra on January 30, 2016, 11:38:36 am

Will the Mojo power transformer that Doug sells handle a 3 amp heater current draw that a 5U4G requires? I'd like to build a champ and use as many existing parts as I have available, and I have a spare 5U4G laying around.

Title: Re: Quick Mojo759 Transformer question
Post by: DummyLoad on January 30, 2016, 11:41:20 am

yes.


--pete

Title: Re: Quick Mojo759 Transformer question
Post by: plaidzebra on January 30, 2016, 11:44:55 am

Cool, is a 5U4G interchangeable with a 5Y3? Or would I have to worry about wiring anything differently?

Title: Re: Quick Mojo759 Transformer question
Post by: DummyLoad on January 30, 2016, 11:52:32 am

Quote from: plaidzebra on January 30, 2016, 11:44:55 am

Cool, is a 5U4G interchangeable with a 5Y3? Or would I have to worry about wiring anything differently?

http://www.r-type.org/pdfs/5y3gt.pdf (http://www.r-type.org/pdfs/5y3gt.pdf)


http://www.r-type.org/pdfs/5u4gb.pdf (http://www.r-type.org/pdfs/5u4gb.pdf)


--pete

Title: Re: Quick Mojo759 Transformer question
Post by: plaidzebra on January 30, 2016, 12:05:11 pm

Thanks! So just to confirm, I can use the coke-bottle 5U4G that Doug sells instead of a 5Y3 in a 5F1 champ, as long as I use the Mojo power transformer that he lists as the Mojo759?

Title: Re: Quick Mojo759 Transformer question
Post by: DummyLoad on January 30, 2016, 10:55:12 pm

yes.


--pete

Title: Re: Quick Mojo759 Transformer question
Post by: Willabe on January 31, 2016, 12:26:59 am

Quote from: plaidzebra on January 30, 2016, 11:38:36 am

Will the Mojo power transformer that Doug sells handle a 3 amp heater current draw that a 5U4G requires?

The transformer page in Doug's on line store on each transformer there is a link (below) that when you click on it a new page comes up with all the specs to the transformers he sells.  :icon_biggrin:   

http://el34world.com/Transformers/fentrans.htm (http://el34world.com/Transformers/fentrans.htm)

Title: Re: Quick Mojo759 Transformer question
Post by: plaidzebra on January 31, 2016, 07:57:00 am

Thanks guys, I appreciate the help!

Title: Re: Quick Mojo759 Transformer question
Post by: EL34 on January 31, 2016, 05:20:40 pm

What Willabe said above ^^^

There is a link next to each transformer with a link to to the specs page

http://hoffmanamps.com/MyStore/catalog/Transformers.htm (http://hoffmanamps.com/MyStore/catalog/Transformers.htm)