Suggested by Motorola in 1968 documentation, this circuit has an efficiency of 70%. Power transistors are types of the time as are transformers.
Found ina 1970 American documentation this fast-reading circuit uses a photodiode. Transistors...
This circuit was found in an Electronics World of 1968. The transistor can be any general purpose and...
This power source was found in a 1968 Electronics World. The transistors are from that time. The...