4-step ladder generator (CB9342E)

Found in American documentation from 1968, this circuit uses both diodes and a neon lamp to generate a 4-step ladder. Observe the signal voltage.

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Diac Light Pulse Generator (CB14687E)
We found this relaxation circuit with diac in an opto-electronic documentation with diac....
Dark activated alarm with hysteresis (CB7868E)
Found in American documentation from the 90s, this circuit can be implemented with modern...
SCR Trigger Circuit (CB16413E)
In the figure we have a very simple trigger circuit for an SCR that powers a 12 V lamp whose...