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Tubes Asylum Questions about tubes and gear that glows. FAQ |
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Tubes Asylum Questions about tubes and gear that glows. FAQ |
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In Reply to: JAN GE 5670 black burn marks on getter flashing posted by kylealers@gmail.com on July 9, 2015 at 14:03:02:
Many tubes develop the black (or gray) marks above the cathodes and they are of no consequence. Most likely these occur due to impurities in the glass or within the tube itself.
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Follow Ups
- RE: JAN GE 5670 black burn marks on getter flashing - SETguy 04:51:33 07/10/15 (6)
- RE: JAN GE 5670 black burn marks on getter flashing - kylealers@gmail.com 05:05:25 07/10/15 (5)
- RE: JAN GE 5670 black burn marks on getter flashing - kylealers@gmail.com 05:15:15 07/10/15 (4)
- RE: JAN GE 5670 black burn marks on getter flashing - Jim McShane 05:20:55 07/10/15 (3)
- RE: JAN GE 5670 black burn marks on getter flashing - kylealers@gmail.com 05:28:59 07/10/15 (2)
- RE: JAN GE 5670 black burn marks on getter flashing - Jim McShane 09:26:47 07/10/15 (1)
- RE: JAN GE 5670 black burn marks on getter flashing - kylealers@gmail.com 10:50:25 07/10/15 (0)
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