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Contact Marstran/Brian Wallace

First, please get in touch with Brian Wallace of Marstran Transformers
http://marstran.com/
http://marstran.com/Contact.php

He is the best, IMHO, Marshall transformer expert.

Most importantly, we need to get that amp in the database, PLEASE. It is fascinating.
http://marstran.com/Historic%20Data%20Base.htm

I have heard that there were some with voltage doublers, but never seen one myself.
Thanks so much for sharing, I wish I could help, but transformer engineering is not a science where I can help much.

Btw, I have been thinking about voltage doublers a lot lately as I contemplate my own designs while analyzing and comparing the original Fenders with doublers, HA Dumble's use of that same power amp platform opposed to Ken Fischer's Marshall refinements.


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