Found on a 1969 EDN this circuit switches a current from a digital control signal. The impedance of the circuit ON is approximately 10 ohms. Modern equivalent transistors may be used.
The integrated circuit used in this 80's application is not common today. However, modern...
This circuit makes use of the Linear Technology LT6100. We find it in a 2005 company manual. The...
This General Electric circuit produces pulses of light only when light stops shining on the...