Divider by N (CB25201E)

This circuit uses BCD switches to program the frequency to be divided. The circuit is from a Radio Electronics magazine from February 1989.

| Clique na imagem para ampliar |

Binary and Decimal Counter (CB17422E)
This didactic circuit was found in a 2001 documentation. It presents the result of programming in binary...
Variable Frequency Oscillator (CB22465E)
This VFO circuit generates signals from 2 Hz to 50 Hz. We found it in Popular Electronics from...
3-Tone Oscillator using the741 C (CB4426E)
This circuit can be used as a buzzer from 3 different locations, allowing you to identify where it went...