Unusual Radar Detector

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This unique anchient design uses a chopper amplifier.

The microwave diodes are chopper-gated by a multivibrator so the RF signal level can be detected by an audio frequency amplifier.

Circuit Diagram aka Schematic reverse engineered from circuit board

Below is a picture of the antenna:


Safety, accuracy and completeness of information provided herein is not guaranteed,
so be inspired by it but do not use it as a basis for experimentation or other actions.

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