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20-40 Meter Short Coil Loaded Dipole Antenna
40 meter short coil loaded dipole antenna. The goal will be to keep the total length under 40 feet
post 04 Mar 2024
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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
High-Q Coil Construction Techniques
High-Q coil inductors have something in common: the length of the coil can only be slightly longer than its diameter. In other words, high-Q coils have cube-like dimensions
Helical Coil
The inductance and self capacitance of a helical coil can be determined by entering its dimensions in the boxes above. The length of wire used is also calculated
Inductor resonance experiments
Methods for determining the resonant and self-resonant properties of coils
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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
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
High-Q coil inductors have something in common: the length of the coil can only be slightly longer than its diameter. In other words, high-Q coils have cube-like dimensions
The inductance and self capacitance of a helical coil can be determined by entering its dimensions in the boxes above. The length of wire used is also calculated
Methods for determining the resonant and self-resonant properties of coils
Antenna splitter per VHF-UHF per quattro ricevitori Chi dispone di una sola antenna e vuole collegarvi più di un ricevitore necessità di uno splitter
Amateur radio kits by Kanga US
50MHz to 28MHz RX Converter The concept of the rx converter is quite simple and nothing really new. the local oscillator is a standard colpitts crystal oscillator producing the 22mhz lo signal