On Fri, 22 Nov 2019 12:54:32 -0500, you wrote: >I picked up a CENCO Oscillating Spark Timer at the MIT flea market. >I would have liked to get an old tuning fork frequency standard but >this old mechanical oscillator peaked my interest and at $5 I could >not resist taking it home.
I remember using one of these to time "frictionless" pucks colliding on a sheet of waxed paper in freshman physics lab in beautiful Troy, NY. I thought at the time "hey, an electric Vibroplex!" It pulsed a Model T spark coil, IIRC. _______________________________________________ time-nuts mailing list -- time-nuts@lists.febo.com To unsubscribe, go to http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com and follow the instructions there.
