This switched regulator configuration was found in Motorola's 1969 documentation. The integrated circuit is from that time and is difficult to obtain today.
This circuit was found in a 1967 RCA manual. The transistors are of the time. The adjustment is made to...
The L coil of this field strength meter depends on the frequency range in which it must operate. The...
This adjustable regulator uses the 741 and power transistors and can supply a current of up to 1...