Due to the shift of purchase orders from an Orion to an Orion II, I have
an excess Inrad 600 Hz filter for the Orion. This is the one everyone
speaks about that helps provide a narrow roofing filter and decent IMD
instead of the 500 Hz TT filter. I have mine in the 1 KHz slot, and it
works very well. (The #352 was only offered as a kit, was discontinued
with the availability of the constructed one, and I built this one myself
a year ago.)
$25 takes it, and I'll include shipping in that (stateside only).
73, Duane
--------------------------------------
Duane Calvin, AC5AA
Austin, Texas
http://home.austin.rr.com/ac5aa
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