Another Series-tuned Air-core Coil Crystal Radio

This is the air-core coil version of my 'series-tuned crystal radio with alternative detector'.

Series-tuned Crystal Radio with
Air-core Coil - Schematic
It is enclosed in a cosmetic jar with the (500+500) pF PVC gang condenser mounted inside its cap.

Series-tuned Crystal Radio
There is sufficient clearance to close the jar even though the coil is wound on its body.

Series-tuned Crystal Radio - Coil view
The local 612 kHz, 200 kW AM broadcast station comes in real loud with a 60' wire antenna and sound-powered phones. Headphone current, measured using a 1mA FSD 60 Ω meter, is 750 μA.
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