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February 7th 05, 05:46 AM
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Yes, I agree. Thanks.
Bill W0IYH "J M Noeding" wrote in message ... On Sun, 06 Feb 2005 12:46:05 GMT, "William E. Sabin" wrote: I have had no trouble with Q=200 coils. I have a Boonton Q meter that verifies this when the correct core material (especially in a toroid) is used. At 30 MHz we do have to be somewhat persistent, though. Best regards, Bill W0IYH Bill, what I meant is that "when you want to make a coil with Q=200 - not 180 or 190" you may have to try some times if you haven't any experience from which materials gives at least Q=200, a higher Q may always be reduced to 200 with a resistor Yes, I have a Radiometer Q-meter - quite old, almost as old as yours, with thermionic tubes from the 30's and 50's, hi 73, jan-martin LA8AK --- J. M. Noeding, LA8AK, N-4623 Kristiansand http://home.online.no/~la8ak/c.htm |
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