Touch switch (CB21299E)

Found in American documentation, this switch is based on the 4093. The load will determine the supply voltage. The transistor is general purpose.

| Clique na imagem para ampliar |

Positive Trigger Monostable (CB19027E)
This conventional application of the 555 as monostable was found in a technical documentation from...
Bass control (CB8722E)
Found in a 1993 Electronics Hobbyst Handbook, this passive circuit can be used with common...
Lie Detector (CB11997E)
This circuit indicates the resistance of the skin of those who hold the electrodes. RV1 makes the...