This circuit was found in the September 1989 issue of Radio Electronics magazine. The circuit uses components that support modern equivalents such as the operational amplifier.
The circuits below were found in amarican publication of the year 1958. The transistors are...
This circuit produces signals that depend on the input control voltage. It is a Voltage Controlled...
The bipolar transistors may be BD136 and BD136 and FET of any type for 1 A current at least. The...