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In Reply to: Take a look, this is an IDHT (nt) posted by Chip647 on May 30, 2013 at 12:00:06:
That sleeve is to keep the cathode from shorted against the grid I would guess.
"For every complex problem there is an answer that is clear, simple, and wrong" H. L. Mencken
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Follow Ups
- Now I see what you mean - Michael Samra 17:24:13 05/30/13 (0)