SSTC Singing Arc Design - Help needed

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Original poster: "Mccauley, Daniel H by way of Terry Fritz <twftesla-at-qwest-dot-net>" <daniel.h.mccauley-at-lmco-dot-com>



Well, I'm off to begin my SSTC Singing Arc project.  I checked out Richie
Burnett's site and Alan Sharpe's site but didn't really find anything useful
as far as an actual implementation of the circuit.  So I think i'm on my
own.

The first thing I need to do is get a DC input to my power supply circuit.
For this, I'll just use a full-bridge rectified mains (115VAC) with some big
caps for smoothing filters.

The next thing is I need to figure out how to implement am modulation (via
audio signal) to my FET drive circuit.  Right now
I'm using a TL494 PWM Driver IC.  Someone how I need to am modulate the
output of this guy.  Anyone have any ideas???

Thanks

Dan