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Re: Topology of Bitx40 bandpass filter

 

C3 and C5, 1000 pf are the mids. See EMRFD Page 6.77 Fig 6.135

73

Ken VA3ABN

On Sun, Apr 2, 2017 at 8:55 PM, cove37 via Groups.Io <cove37@...> wrote:
No, not to nitpick, the filter in the bitx40 schematic, does not have a separate Cmid value, the series capacitors, all 3, are of the same value


On Sunday, April 2, 2017 6:24 PM, Ken <chase8043@...> wrote:


The series resonant version does have Cmid.

73

Ken VA3ABN

On Sun, Apr 2, 2017 at 5:41 PM, cove37 via Groups.Io <cove37@...> wrote:
Hm, appears to be a cross between a double and a triple tuned...5 poles, but no separate Cmid value
Burton Ison
W5IAC
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