[R-390] IERC Tube Shields Information

[Norman Ryan]

Nice link, Les!

My two cents on shields:  I think the WPM shields work better when the top opening is widened.  I do that on mine by way of a smooth tapered reamer.  I simply press it into the shield and push down.  The shield top is thereby curled downward and doesn't harm the heat-dissipating innards that contact the tube.

I feel this slightly improves the WPM shield's performance in a manner similar to the IERC type.

73 de Norman
KG4SWM


--- On Wed, 4/17/13, Les Locklear <leslocklear at hotmail.com> wrote:

> From: Les Locklear <leslocklear at hotmail.com>
> Subject: [R-390] IERC Tube Shields Information
> To: r-390 at mailman.qth.net
> Date: Wednesday, April 17, 2013, 6:12 PM
> Here is a great website with lots of
> good info.
> http://www.qsl.net/kh6grt/page4/shields/shields.htm
> Les Locklear
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