Variable Capacitor in a Tuning Circuit!!!
Автор: Pseudodeceived
Загружено: 2021-01-02
Просмотров: 1611
Описание:
This vid's for a Thingiverse upload. Just a 3d printed variable capacitor in a tuning circuit.
https://www.thingiverse.com/thing:470...
My super ultra cheap Part Tester/LCR meter gives me a capacitance range of about 25pf to 130pf. Eleven turns of 22g wire around a filament box with the variable capacitor lets me tune around the top 1/3 of the AM broadcast band. The signal in the videos from a function generator driving another unconnected coil beside the filament box at 1.4Mhz and 7mV p-p...
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