This powerful high-fidelity amplifier was described in an article in Radio Electronics magazine in December 1973. Note the use of 8 high-power transistors that must be mounted on excellent heat sinks.
This code practice oscillator was found in an English publication from the 80's. The circuit can...
This crystal oscillator is indicated for the calibration of IF steps of common radio receivers. The...
In the figure we have the simple way of controlling a load or having a signal from an optical...