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#9
July 17th 05, 12:18 PM
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"Manufacture" = "Make By Hand"
"Scott" wrote in message ... Of course, you CAN build the capacitor, but unless you want to do it for fun and/or education, why re-invent the wheel? Dan's Small Parts and Kits sells several nice capacitors. http://www.danssmallpartsandkits.net/ The capacitors aren't necessarily "dirt cheap", but a manufactured capacitor will be physically stable, insuring smooth change in capacitance as the shaft is rotated. Scott N0EDV Jim wrote: i need a variable for a receiving loop antenna. does anyone know how to determine the area of plates for a given value of cap? for example i need 365 pf. two half circle plates would be handy, separated by a piece of plastic or card stock. what surface area for each plate would approximate that value? does two stator plates with one rotor between them increase the value if compared to one plate each? |
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