We found this circuit in the June 1987 issue of Radio Electronics magazine. With it, it is possible to receive signals from the bands determined by the crystals in a common medium wave receiver.
This circuit is suitable for applications such as a TTL log digital link. Maximum frequency is...
This circuit was used in an alarm published in the July 1970 Radio Electronics magazine. The...
We found this circuit in a 1990 documentation. It works with the power of the digital circuit...