Mini solar organ (CB20506E)

This circuit was found in an old documentation and can be powered by a solar panel. The touch resistor is a nichrome wire.

Triac Motor Control (CB1312E)
This circuit has some differences from the conventional types of control in which the delay in the...
Transformerless converter 220 V (240 V) to 110 V (CB1236E)
This interesting AC / AC converter is only indicated for resistive loads and was obtained in a...
Amplified Microphone (CB16483E)
This circuit consists of an electret microphone amplifier powered by a 12 V voltage. A regulator is...