This circuit was found in an American documentation from 1968. The circuit uses transistors from that time. The output currents are shown in the diagram.
This oscillator uses a small IF transformer taken from an old transistor radio. FET admits...
A configuration using three of the four voltage comparators on the LM339 is shown in the figure and...
This two-transistor circuit is from a Radio Electronics magazine from April 1965. The transistors are...