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Pete Millet's Uniamp

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Hey Anyone,

I'm working on building a Pete Millet Uniamp using 2A3 outputs. The input is, I think, balanced and uses an input transformer. I'm building this amp for a friend that is wild about 78's. So it will be a mono amp driven by a stereo preamp. I was going to use a pair of resistors in a 'summing circuit' but there might be a better way?

Instead of the very expensive shielding of the Sowter or Lundahl input transformer I plan to use an Edcor WSM 10k/10k as the input transformer and then shield it myself.

Could I just connect the stereo inputs to either end of the primary of the transformer?
 
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