We found this circuit in documentation from the 1980s. It is an input stage for a digital frequency meter. The circuit can operate with signals up to a few tens of megahertz.
Suggested by Mullard in a1969 documentation, this circuit generates the erasure signal for tape...
A pulse applied to the input of this circuits results in a damped signal in the output. Frequency...
This circuit can activate a powerful lamp or call system when a telephone call occurs. Suitable for...