This circuit was obtained in an American documentation from the 80's. The transistors can be equivalent to those indicated and the crystal can reach a few tens of megahertz.
Amphenol Sine eco | mate ™ connectors can be purchased from Mouser Electronics for a variety of...
This circuit is suitable for use with 1400 kHz range FI receivers. Changes can be made to other IF...
Found in an American documentation from 1968, this circuit senses the temperature through an...