[Amps] Chimneys

[R.Measures]

- Will -- A less-expensive chimney can be made from plastic-box  food 
containers sold in grocery stores.   Cut appropriate size holes in the 
lid and the box, fasten the lid to the chassis, snap on the box, plug 
in the tube.  Sure, it sounds TF stupid and un-elegant, but such boxes 
are made to be µ-waved to heat food, so they are made from low D-factor 
material.  //  note - I cut thin plastic (except TFE of course) with a 
600º F. cone-shaped tip in my soldering iron.
end

On Aug 5, 2004, at 4:10 PM, Will Matney wrote:

> I am working with a company now who makes different electrical 
> tubings. They mentioned one with a heat rating of 400 deg. C. (752 deg 
> F.). Also saying they could match the diameters I need. This tubing is 
> made from Kapton and their specs give a good HV insulation resistance. 
> If this comes about, these chimneys could be way less expensive than 
> ceramic or teflon. If anyone may be interested in this, let me know as 
> I may start making them if there is enough interest.
>
> Will Matney
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>
Richard L. Measures, AG6K, 805.386.3734.  www.somis.org