With this circuit, signals in the range of 10 kHz to 150 kHz can be received at close to 4 MHz from a shortwave receiver. The circuit is from a 303 Circuits from the 90s.
With this circuit it is possible to obtain a sinusoidal signal from a triangular signal. The...
This circuit extends the scale of a milliammeter. We found it in a documentation from the 60's. The...
The first configuration we show is a flip-flop that can be triggered using two push buttons of the...