[R-390] R-390A Tube Shields

[Nick England]

That should help, but the advantage of the IERC shield are two-fold -
one it contacts the tube glass envelope and efficiently conducts heat
away like that. Two it has a tight fit to the chassis and conducts
heat from the shield to the chassis that way. Someplace I have a Navy
tech report comparing all the tube cooling techniques and need to scan
it.
cheers,
Nick

On Wed, Apr 17, 2013 at 4:49 PM, Ted Breaux <tbreaux7 at comcast.net> wrote:
> Instead of using the IERC "black" tube shields why cannot we use the ones that came with the receiver and paint them inside and out with High Temp flat black paint?
>