This circuit is from a 1980s Motorola documentation. The circuit can be set to fire from 60 to 120 V DC or from 42 to 84 V AC. The circuit has a forehead button that activates an indicator lamp.
This traditional circuit generates a 200 Hz sinusoidal signal. The frequency depends on the...
This circuit supplies a continuous voltage at its output, which is the peak value of the...
This circuit is suggested by National Semiconductor and has an excellent gain, for a photodiode as a...