S-40B Question

Harry Vaught, KT4AE kt4ae at BELLSOUTH.NET
Fri May 18 13:05:14 EDT 2007

I've gone both ways.  In my SX-71, SX-16, and S-20R, at various times 
I've gone with all glass thinking the glass tubes ran cooler and then 
going with whatever was original: glass or metal.  I realize there are 
theoretical issues with losing the metal shielding, but I've never been 
able to notice any effect when substituting metal for glass.

Governed by whim and not science,

Harry, KT4AE
Maryville, Tennessee

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