Divider by 5 in second version (CB25364E)

This is an improved version of the previous circuit also found in the December 1990 Radio Electronics magazine. The duty cycle is also 50%.

| Clique na imagem para ampliar |

Projector control (CB8299E)
This old slide projector control circuit was found in an 80s Hands On. The circuit uses modern...
SUS Frequency Divider (CB19903E)
In the figure we have a circuit that uses unusual components, being indicated for low frequency...
Rain alarm (CB6955E)
The sensor of this circuit found in Popular Electronics can be formed by a piece of fabric between two...