Found in a 1969 neon lamp publication, this circuit provides two voltages under very-low currents. Neon lamps are types of the time.
This circuit is from a 1968 publication. It uses germanium transistors from the time, having...
This circuit can be used as shield or to drive powerful loads from low current switches such as...
This is a 6-transistor transistor receiver manufactured in the 60s. The circuit is a...