This circuit makes use of components from the time it was published. The TCA151 is not a common component today. The circuit generates 10 to 10 kHz signals.
An oscillator that uses two gates is not suitable for critical applications, as it tends to pick...
We found this circuit in a 1991 Hobbyst Electronics. The circuit makes use of an unusual...
We found this circuit in a 1982 documentation. An intercom to be good must be sensitive and have...