Found in a 1965 Electronic Design, this circuit generates adjustable pulses between 200 uA and 10 mA. The components admit equivalents. Pulse duration is 1 us.
The components of this circuit are not common today, as it was obtained in the Linear Applications...
Suggested by General Electric documentation from 1968, this circuit activates a relay after 60...
This basic amplifier circuit that can be powered by voltages from 6 to 24 V has the output...