This circuit uses a resonant reed switch at the trigger frequency. The circuit is from General Electric in a 1966 documentation. This type of component is rare today.
This relay time delay circuit was found in the October 1993 issue of Electronics Now magazine. The timing...
This low noise, low frequency instrumentation circuit was found in a 1976 NASA circuit manual. The...
Hig stability is the main feature of the 10 V regulator circuit shown in the figure and suggested by...