This old fashioned transistor amplifier was found in a publication of the year 1958. Transformer are the critical components in the circuit and power comes from 6 D cells.
This circuit found in a 1993 Electronics Hobbyst Handbook has a very simple configuration that can be used on...
Suggested by Motorola documentation from the 1980s, this circuit can be implemented with...
This circuit was found in a 1970 IEEE publication. The circuit functions as a voltage controlled...