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Do It Yourself (DIY) paradise for tube and SET project builders.

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Why hello Tre',

So nice to hear from you.

We started with two seriesed-connected Signal Transformer Co. DU-1/2s, ... do you know what that PT is? It has FOUR 104-110-120 VAC windings, two on the primary and two on the secondary of each trannie. Lotsa' voltage combinations are possible !!

Tre', why OF COURSE voltages were the same !! I measured them carefully to protect the vintage 245 ( and do a fair comparison ), measuring with my Fluke 8060A when doing all changes!!

We really can't deny the clear-cut sonic superiority of this output stage power supply approach over "conventional" L-input filters, etc. as promulgated during the last 100 years. On Greg's RCA Field Coil /Altec 515 B system, it is startlingly wonderful.

Jeff Medwin


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