Switch with automatic shutdown (CB21258E)

This circuit was found in Maxim documentation from the 1990s. The RC circuit determines the trigger time.

Circuit for milliammeter (CB22310E)
This circuit extends the scale of a milliammeter. We found it in a documentation from the 60's. The...
Beacon with PUTs (CB9788E)
This circuit was found in old documentation, appearing in several ways in this section. PUTs are...
Monostable Proximity Switch with 4013 (CB4639E)
We have in the figure as a monostable a proximity switch where our body capacitance (estimated at 200...