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In the Forum: Melquiades Amplifier
In the Thread: Building Melquiades: Chronicle of full-range
Post Subject: Re: Lower voltagePosted by hagtech on: 7/8/2006
Interesting results.  Funny thing about that sweet spot.

One thing you might try is to add the output from a 12.6V secondary to the primary side of the B+ tranny.  Out of phase.  This can be a resonably small transformer that could fit in that chassis.  This keeps the B+ impedances the same, puts 107V on the primary side.

I'm curious if the sweet spot is related to power.  Have you tried using a higher current at the lower B+?  Or does that overload the output tranny?  Wondering if 60W is too much for this tube. 

jh

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