I may have found the solution to coming up with a chimney for the 3CX3000.
It is a recessed ceiling lighting fixture made out of a thermoset type black
plastic. I found them here in the Tampa area. Since it is thermoset
material, it burns rather than melts and since lighting fixtures get quite
hot, I would think it would survive as a chimney. The thing measures 4-1/16"
ID at the neck, 6" at the base and is 3" high. I had to grind out the top
to 4-1/8" with a Dremel grinder and it fits right over the fin diameter of
the 3CX3000. The 3" height is JUST high enough to reach the bottom of the
fins. Anybody interested, I can EMail a picture of what it looks like. It
even has a small lip on the lower 6" diameter to allow one to hold it down
on the chassis with screws and tabs like is done with the 8877 chimneys.
Bob W6TR
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