Guitar Distorsion Pedal (CB18205E)

This simple circuit with two transistors was found in a 1985 publication. The power can come from batteries or battery, as consumption is very low.

| Clique na imagem para ampliar |

Light Controlled Power Switch (2) (CB12288E)
In this circuit from a 1991 publication, we can use the 2N2646 unijunction transistor and the...
Schmitt trigger (CB21475E)
In the figure we have the way to use the transistors of an old-paired pair as a trigger circuit. The...
AC static switch (CB9276E)
This static switch or electronic contactor was found in a 1968 Motorola publication. The triac...