Voltage Calibrator (CB21331E)

This circuit is from an old Popular Electronics. The circuit is based on a 555 and a 5V voltage regulator.

| Clique na imagem para ampliar |

Delayed Pulse Generator (CB25729E)
Delayed Pulse Generator This can be considered an "advanced" application where two 555 integrated...
Timer up to 25 Hours (CB4661E)
We found this circuit in a 1994 publication. It makes use of a divider for 16 384 CMOS type 4060. By...
Precision Full Wave Rectifier LM741 (CB25220E)
This buffered version of the previous circuit appeared in an article in the September 1989 Radio...