This circuit fires with the noise captured by the touch of a sensor. Signal shapes are given next to the diagram. The circuit is from the 80s, using components from that time.
This transmitter was sent by contributing reader Adriano Muniz Moura from Pirapora – MG. It is in...
This circuit indicates whether the voltage to be measured is higher or lower than the zener diode...
An interesting application that can be implemented with the LM139 is the pulse width modulator. This is...