Dual control with SCR (CB7223E)

This 1960s Signalite circuit uses two SCRs to achieve full wave control. The trigger elements are neon lamps.

| Clique na imagem para ampliar |

Operational Voltmeter (CB14855E)
Using an operational amplifier with FET, this voltmeter has a high input resistance. The circuit has...
Video cable equalizer (CB21319E)
This circuit was found in a Linear Technology documentation from the 90's. The integrated circuits are...
Crystal controlled oscillator (CB3928E)
This circuit generates signals controlled by crystal and can generate marks up to 30 MHz of 1 in 1...