This is a typical 3 ½ digit TTL counter. We found it in the September 1973 issue of Radio Electronics magazine. The circuit is to be powered by 5 V. It can be expanded to more digits.
This circuit from an old 1978 publication uses germanium transistors but can be implemented with...
This amplifier was obtained in a Harris documentation from the 90s. The circuit is high speed with...
Author: Newton C. Braga Published:August 1, 1998 Formato:Book and e-Book Pages:...