Voltage Controlled Resistor (CB25150E)

This circuit behaves as a voltage controlled resistor and can serve as a small load. The circuit is from a Radio Electronics from July 1988.

| Clique na imagem para ampliar |

Quick Discharge in Unijunction (CB19134E)
With this circuit it is possible to accelerate the discharge of a capacitor in a unijunction...
6V Charger (CB4790E)
This circuit was found in a Poptronics of the 90's. The circuit limits the load current to 0.6 A....
Zero Crossing Detector LM393 (CB4483E)
The circuit presented is from the 1993 Motorola Linear Interface ICs. Other operational may be...