In the figure we have the way to control a flip-flop with the 4069 from positive pulses. The circuit can be used as a shield, if powered by 5 V.
In this circuit, the LED Will blink in a presence of na áudio signal in the input. Gain is...
This synthesizer circuit was found in a Radio Electronics magazine from May 1983. The circuit uses...
This circuit was found in a documentation of the 70s. The circuit uses an integrated that is not...