Crystal Radio With Cat Whisker Upgrade (4K)

Описание: I put a cat whisker detector on the single variable capacitor crystal radio as I hinted at in that video. Let's see how it works.

This is the radio I am upgrading:
"Crystal Radio--No More Variable Capacitor Designs? (4K)"    • Crystal Radio-No More Variable Capacitor D...  

WARNINGS:
Never connect radio to any source of power. Not house current, nor batteries, nothing!
Never use the radio during lightning storms.
Never run an antenna over or near power lines.
Disconnect antenna and put lead outside when not in use.
Never ground to electrical items, plugs or similar.
If you don't know, don't do it.

OSCILLOSCOPE USED:
$25 Color Oscilloscope! The Incredible DSO138 (4K)    • $25 Color Oscilloscope! The Incredible DSO...  Using

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