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Duh!!
Found the faulty component - my brain!
The problem was just that a few weeks ago when it was still working to a decent extent, I still had the pushbutton faceplate attached, then removed it to clean the transducer screenhole out. So I was just testing it without the faceplate, and no juice... because the faceplate serves as a connection point between the transistor drive and the ground of the transducer! It was barely squeaking because the transducer was just getting slight grounding - from my fingers.
Anyway now it works like a champ from across the room, that totally clogged-up screen was indeed the glitch but it took me a couple of weeks of cussing to find out. Thanks for the tips nonetheless....Frenchy
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