In Reply to: Question about Tung-Sol 6550's posted by Alpha Al on March 26, 2004 at 20:51:01:
I was once told that the holes were used for alignment of the plates during manufacturing. No idea if this is actually true!
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Follow Ups
- Re: Question about Tung-Sol 6550's - Gary Kaufman 03/30/0415:38:45 03/30/04 (0)