Using a 74123 TTL this circuit was found in the Radio Elecronics magazine of June 1975. The power supply must be 5 V. The capacitor determines the activation time.
The components of this circuit from the 70's are no longer common on the market, but it is...
This circuit produces rectangular and triangular signals using two 741 operational. The source must...
The basis of this 90s circuit is a CA3130 operational amplifier. The circuit does not need a...