This Nixie pipe circuit was found in 1965 documentation. Note the high supply voltage. Appropriate transistors of the time were used.
These simple weapon and target circuits with emitter and photoelectric sensor were found in a 1985...
We found this circuit in an old publication dealing with operational amplifiers. The circuit uses...
Suggested by General Electric in a 1967 documentation, this circuit replaces the Thryraton tubes used at...