tube shields

[kd4e]

I see the logic of painting the inside but painting the
outside makes no sense to me at all.

Paint is an insulator - a slick reflective surface on the
outside resists the absorption of heat from other sources
(other than the tube it covers) and allows air to flow
more quickly across the outside surface wicking-off heat.

WDYT?

> In point of fact, the data you mention was gathered by the military 
> some time ago. That particular report, if I remember correctly, also 
> stated that simply painting the tube shields with black liquid shoe 
> polish, inside (especially), but also outside made a HUGE 
> difference in the tube heat.
> 
  > You want to suck the heat OUT of the tube, not reflect it back INTO
> the tube.
> 
> Ken Gordon W7EKB 


-- 

Thanks! & 73, doc, KD4E
Personal: http://bibleseven.com/kd4e.html

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