This flip-flop with neon lamps was found in a 1969 publication that deals precisely with neon lamps. Observe the high supply voltage.
This circuit was found in a Mullard transistor manual from 1960. Note the symmetrical power...
With the shadow over the sensor, it is possible to interrupt the sound of your amplifier using this...
This circuit puts the battery in the circuit when the voltage of a source is cut, preventing it...