[Hammarlund] Re: [R-390] Re: Tube shields? We don’t need no steenkin' tube shields!

[Les Locklear]

The only reason I ran this test was because of the different types of 
"inserts" in side the various shields. Pete's website page is great reading. 
Also, Electric Radio Issue 66 had another great article by Bill Kleronomos.

If I had a complete set of the IERC types with the finger grip type insert 
for the SP-600, I would use them. But, I haven't used tube shields for 
several years and have no tube failure problems.

Les


----- Original Message ----- 
From: "pete wokoun, sr." <pwokoun at hotmail.com>
To: <r-390 at mailman.qth.net>
Sent: Tuesday, December 04, 2007 9:50 AM
Subject: [R-390] Re: Tube shields? We don’t need no steenkin' tube shields!




About three years ago I did a study and put out a paper on the effectiveness 
of these IERC heat shields.  It shows the effectiveness of these things with 
temperatures.  Great of Les to do more testing.
You can view that paper here:

http://www.qsl.net/kh6grt/page4/shields/shields.htm

Pete


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