Sylvia Else wrote:
Don Klipstein wrote:

Cheaper still requires oscillators regulated by component tolerances
- and oscillators tend to have at least two components affecting
frequency, and finest tolerance of ones easily available at premium
prices is 1%, meaning low chance of achieving timing highly reliably
better than 2% in either direction unless either crystal or power line
time base is used.

I'd have thought getting the cycle to within 10% would be more than
adequate.

Sylvia.

No, because time and Tide wait for no man.

--
PB
"I suspect you're an arrogant little ****ant who grew up in the
Red Bull generation." - CJW