Butterfly Air Variable Capacitor

Butterfly air variable capacitor. Butterfly capacitors are hard to find expensive but they can be home made.

Py1ahd Alex Alexandre Grimberg Py1ahd

Mfj Mfj 23

Butterfly Air Variable Capacitors

This is our mfj 23 a larger low loss butterfly loop tuning capacitor.

Butterfly air variable capacitor. 19 85 pf at 850v slot adjust machined solid brass plates vertical pc mount silver plates 716 wide x 12 deep x 34 high. Built in insulator feet give 1 inch of space under the bottom of the capacitor allowing convenient mounting and high voltage insulation. There are two basic parameters to design a variable air capacitor.

The capacitance is variable from 18 136 pf. The butterfly capacitor is the best option for the magnetic loop construction. This low loss butterfly loop tuning capacitor has a voltage rating of 4200 volts rms.

A butterfly capacitor is a form of rotary variable capacitor with two independent sets of stator plates opposing each other and a butterfly shaped rotor arranged so that turning the rotor will vary the capacitances between the rotor and either stator equally. 1 plates area 2 distance between plates.

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