> I have a Corsair 1
> I understand it uses Six Pole filters " six crystals".
> I am hunting for a 500hz CW filter, Number 285, I think.
Yes, the optional CW filters for the Corsair I (and II and OMNI V, VI)
are 6 pole filters, 282 and 285. These filters go into the 6.3 MHz
IF, no options in the 9 MHz IF, just the one model 220 2.4 kHz
filter.
> Can a newer style 8 pole filter plug into same slot?
No such thing from Ten Tec as far as I know. The only 8 pole
CW filter from Ten Tec is the 217, 500 Hz filter, but it is for
the 9 MHz IF, not the 6.3 MHz IF, it will not fit into the optional
slot for the Corsair. If someone offers you an 8 pole CW filter,
it will not be for the 6.3 MHz IF, it will not be the optional
filter for the Corsair.
Clark
WA3JPG
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