<The stuff I read indicated that some, if not all, of the respondents indicate that their products use a talbot type voltage oscillator (with a Schmitt Trigger) or something similar>

You are pretty good at posting all kinds of stuff here which you seem to think is important stuff. When you read what you are referring to, did you post it here? I would think that such a statement would be significant. No? Sorry I don't recall seeing it. Perhaps you could copy pase your prior post containing that info?

Opty