Hi The Navy certainly liked mag amps for control circuits. About the only other place I have seen them is in controls for fairly high power ovens.
Bob On Jan 9, 2010, at 6:59 PM, J. Forster wrote: > 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 > > ============= > > >> No one has remembered the magnetic amplifiers (C1960) that were >> considered reliable enough for control avionics. >> Vacuum tubes and semiconductors were not considered reliable. >> >> Back to the IC-less clock, I recently constructed a LED clock for a >> TBolt. >> To avoid the flicker effects and to get control of the LED intensity >> I used BCD counters and >> transistor drivers without multiplexing. BCD to hexadecimal was >> arranged with diode decoding. >> It looks half as big as the IC-less clock board with row after row of >> transistors and resistors. >> At least it will always show the correct time in a photograph. >> >> >> cheers, Neville Michie >> >> > > > > _______________________________________________ > 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. > _______________________________________________ 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.
