Found in Signalite documentation from the 1960s, this circuit generates ladder pulses. The circuit generates 3 steps and below 40 V of power, it works as a frequency divider.
This simple circuit with SCR and unijunction transistor appeared in Radio Electronics magazine in July...
Found in a 70s RCA manual, this circuit uses a transistor of the time for an UHF L band...
Found in American documentation, this circuit from the 90s uses components from that time. The...