LM3900 Positive Differentiator (CB5054E)

The circuit shown in the figure has an output voltage rise time of 0.22 ms and an input time constant of approximately 1 ms.

Locked relay (CB21220E)
This circuit can be used as a lockable shield. A pulse activates the relay that remains on even...
Battery condition indicator (CB9547E)
Found in a 90s documentation, this circuit makes use of D1, a switching diode that is uncommon today....
Series MT Micro Switches
June 2017 - New Honeywell MT MICROSWITCH Series can be ordered from Mouser Electronics for...