Receiver for the 40m band LM602 (CB25305E)

This circuit uses an FM IF transformer for tuning. The circuit is from a Radio Electronics magazine from April 1990.

Antenna Splitter (CB24740E)
This circuit was found in the April 1983 issue of Radio Electronics magazine. Its purpose is to...
Automotive Ignition Blocker by Cell (CB17635E)
Evidently, this is a project that still needs some improvements. For example, the ignition can be...
1.2 V voltage regulator (CB19515E)
This very low voltage regulator for 3 V input (2 batteries) was obtained in a documentation from...