[AMPS] Chokes

[Radio WC6W]

>The highest L  choke that has no resonances below 30MHz is c. 65uH.

A data point for the choke discussion:

   An article by Bill Deane in "73 Magazine", September 1969, p. 147
describes a 90 uH choke with a (first) resonance at 43 Mhz.

   The cogent details, to save everyone a trip to the library, are sixty
turns of #20 wire, space wound 4" long on a 3/4" diameter form with a 3"
x .33" ferrite rod mounted in the center of the form.

73,
  Marv  WC6W














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