Dual Sensor (CB21521E)

This circuit, with two operationals, was obtained from an old American publication. Operational amplifiers can be of modern equivalent types.

| Clique na imagem para ampliar |

Timer (CB18800E)
We found this timer circuit in a publication in the 90's to turn off a device powered by 4...
Q Multiplier (CB10064E)
This circuit is suitable for use with 1400 kHz range FI receivers. Changes can be made to other IF...
Ultra Low Ripple 12V Power Supply (CB9507E)
The transistors of this 12 V x 150 mA power source can be BC558 for PNP and BD135 for NPN. The...