So Hoyt --
Have you replicated this circuit using a cannibalized TV xtal ?
Hoyt A. Stearns Jr. wrote:
3.58 MHz is probably a rounded version of 3.579545, the most common xtal in
the world -- the NTSC color subcarrier frequency.
Hoyt Stearns
Scottsdale, Arizona
http://HoytStearns.com
I will show that later (a 5V dip oscillator), this should
solves a bit of the trouble with the gen drift.
What about a X-tal OC for generating a signal at a specific frequency :
http://www.t-mallusa.com/product_info.php?products_id=2894878
Two problems - there is none available AFAIK which oscillates at
*exactly* the frequency you found for your circuit 3.58 MHz, but
assuming that one can adjust the core (filing), or the windings or the
beads in the circuit in order to match the OC frequency - this one might
be more efficient than the 5V , as it is a lower voltage part (3.3).
