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.
Of course, with a change in the cable length, the frequency can be changed as long as it is within...
To be used in analog computing, this circuit outputs the difference between the values of the...
This circuit was found in the January 1999 issue of Electronics Now magazine. The circuit uses an...