We found this circuit in the 1964 RCA transistors manual. The transistors used are uncommon today, but they can be used equivalent. The circuit controls the operation of a heating element.
The circuit we show is a water pump actuator that, in addition to being automatic, has a water...
Suggested by Texas Instruments, this circuit operates with frequencies that can reach some...
Found in documentation from the 90's this circuit is for low currents. The transistor can be...