Red alert (CB9082E)

This is another of the Star Trek red alert circuit that you can find on this site. We took this version from an English publication from the 80s.

| Clique na imagem para ampliar |

4 and a half digits display with ICL7135 (CB15361E)
This circuit is from the 1983 Intersil Databook. In it we have the use of the ICL7135 as an AD...
MW radio with varicap tunning (CB22172E)
This MW radio circuit with varicap tuning was found in an English documentation from 1989. The...
Fire Alarm (CB13153E)
This circuit was found in an American publication from the 70s, but it can be assembled with more...