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Old 15th Sep 2017, 6:00 pm   #5
G0HZU_JMR
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Join Date: Sep 2010
Location: Cheltenham, Gloucestershire, UK.
Posts: 3,077
Default Re: KVN/KVG? 9MHz Crystal Filter Board

Ok thanks, I wasn't sure if they were the same type. Mine are marked KVN but I think it's the same people. Note that I don't think these are 560 ohm filters.

Based on my tests I think they are best matched with a source (and load) that looks like 1000 ohm in parallel with about 23-24pF.
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Regards, Jeremy G0HZU

Last edited by G0HZU_JMR; 15th Sep 2017 at 6:09 pm.
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