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 |

Sequential light (CB7853E)
We found this circuit in a 1991s PE Hobbyst Handbook. The circuit fires 10 LEDs that can control...
Amplifier for Earphones II (CB975E)
The circuit shown is an amplifier for medium impedance headphones including bass and treble...
DC voltage follower with LM741 (CB25923E)
In a voltage follower the voltage gain is unity. The input impedance is high and the output...