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In Reply to: Is it unusual for old 6550's... posted by tube Tom on September 4, 2014 at 15:04:15:
Old plastic gets brittle in time. Maybe the extra fat base of the 6550 puts more stress on the keyway if the tube is rocked. Most octal tubes have smaller OD on the base.
I keep some of these replacement keyway doohickeys around...they come in handy.
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Follow Ups
- RE: Is it unusual for old 6550's... - dadbar 07:36:59 09/05/14 (1)
- RE: Is it unusual for old 6550's... - tube Tom 12:25:41 09/06/14 (0)