This circuit was found in a 1965 Electronic Design. Transistor Q2 must be load dependent. The circuit can be adjusted for currents from 1 to 10 A. The voltage drop is 3 V and the maximum voltage is 35 V.
We found this circuit in a Popular Electronics of the 80's. The circuit can be used to drive...
This circuit can also be used as a simple thermoscope (temperature changes indicator) in the...
This speed or priority switch set uses two LED indicators and two SCRs in a common configuration. The...