You're right. Sealed reed relays were the choice for logic. Not everyone used logic for decade or hex dividers, though. HP used phantastron dividers in some early tube counters. A Miller integrator ramped up its output as pulses came in, and a reset circuit reset the count at a certain level.
This could easily be done with magamps. They were being used in the fifties for integrators in industrial process controllers. Bill Hawkins -----Original Message----- From: J. Forster Sent: Saturday, January 09, 2010 5:59 PM I don't think MagAmps were much used for logic, but Di-an made a family of core logic that would certainly work for the counters in a clock. -John _______________________________________________ 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.
