Single-layer Coil Inductance and Q



This single-layer coil inductance calculator uses the Lundin's formula [5] for which the maximum relative error is stated to be less than 3 ppm
post 22 Dec 2021


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Costruire tappole per hf
Con questo articolo vorrei descrivere la sequenza delle operazioni che solitamente svolgo quando costruisco le trappole per le bande HF

Come misurare le trappole con l'analizzatore d'antenna
Studiare un sistema accoppiato d'antenne mi sono imbattuto nell'arcinoto modo di tagliare un coassiale esattamente lambda/4

Cushcraft Trap Coaxial Capacitor Repair
There are occasions that the coaxial capacitor on Cushcraft trap R5, R7, etc. fail due to a breakdown of the insulator between the outer aluminum tubing and the inner capacitor rod

Goedkoop op 80/40 en 20/10 meter met tuner
The wire used is an enamelled copper wire with a diameter of 1.9 mm and a length of 3 meters, often used in transformers

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