Adder with the 741 (CB25794E)

More inputs can be added to this adder that we found in the January 1995 Electronics Now magazine. Other operational ones can be used.

| Clique na imagem para ampliar |

Motorcycle Timed Alarm (CB16869E)
This circuit can use a pendulum sensor. We found this configuration in a 1994 publication. The...
Photoelectric alarm (CB8337E)
This circuit is from a 1964 Electronic Design. The sensor is an LDR and the transistors are...
Preamplifier and Vox II (CB19993E)
This circuit works both as a preamplifier and activates a relay when speaking in front of the...