Found in 1967 General Electric documentation this circuit appears elsewhere in this section. SCRs are common to the 106 Series and more steps can be added to the circuit.
We found this circuit in an American 1980s documentation. The operational ones used are not common...
This circuit has visual and audible status indication using an oscillator. The circuit is from a...
This bargraph-type circuit employs a not very common integrated circuit today, but can be adapted...