[email protected] said: > Hal, do you have a resonant 60 Hz filter in the pickoff?
Not by intent. It's just a wall-wart transformer and then some resistors to get the right level. There are the standard cables (wall wart, RS-232, audio, clip leads). I'm sure there are resonances in there but nothing near 60 Hz. > Remote-controlled tap changers can do things like that. Bingo. Thanks. Here is a graph with the vertical scale zoomed in on the top of the sine peaks so you can see the voltage step. http://www.megapathdsl.net/~hmurray/time-nuts/line/2012-Aug-09-a2.png > I expect you'd rather do things in software, but the mechanical solution is > to couple a synchronous motor to a flywheel marked with 60 Hz lines for > photocell pickup. Good idea. Or an old clock motor. Do they still make motor driven clocks? The kind with the flag that drops down and turns red on a power loss rather than blinking 00:00. I should be able to do something with a simple L-C. I'll have to check the numbers. -- These are my opinions. I hate spam. _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
