This is the circuit of a modified Heathkit kit. The circuit was found in a Radio Electronics from December 1965. The author of the circuit included improvements to the original circuit.
This circuit was found in a documentation for radio amateurs from the year 70. Its purpose is to...
Found in a 1974 Ferranti manual, this circuit uses diodes to limit the voltage on the transistors. The...
The circuit shown can drive loads from 500 mA to 2 A, depending on the transistor with the TTL or...