Simple 6 to 60 second timer 555 (CB25863E)

This circuit was found in the June 1995 Electroics Now magazine. The relay should be a sensitive type with up to 100 mA trigger current.

| Clique na imagem para ampliar |

Power amplifier (CB8943E)
With an output power of 1.5 W under a 12 V supply, this circuit makes use of transistors that are...
Electronic Cricket (CB12622E)
The critical components of this project from a 1978 publication are the transformers, which can be...
Digital Dimmer (CB16771E)
We found this dimmer in a 1994 publication. We can control the speed of an engine through the...