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 |

Current Monitor (CB15826E)
This circuit, suggested by National Semiconductor, provides an output voltage proportional to the...
10W Dual Tone Siren (CB24393E)
This powerful alarm circuit was found in the July 1975 issue of Radio Electronics magazine. The...
Pulse Triggered Monostable (CB25672E)
This two-transistor circuit was found in the January 1994 issue of Electronics Now magazine....