This amplifier is from the Philips Databook of 1990. The circuit is suitable for automotive use and has the characteristics given in the table below the diagram.
The frequency of TTL square signal is divide by 5 with this circuit. Power supply is 5 V and the...
This interesting circuit was obtained from a Poptronics of February 2001. The American magazine no...
This circuit was found in an English magazine from 1983, but it can be assembled with BC548 for...