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In Reply to: Hytron 12DW7.....who is manufacturer? posted by lektrik on July 20, 2006 at 20:27:54:
Is that having seams at the top of glass? If so, two or four seams? Seamed top glass were manufactured in England & etched codes went away (I believe) sometime in the 1970s.Two very small (raised very little from glass) could be from Japan.
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Follow Ups
- Sutured Top........ - Jimmy 11:00:32 07/21/06 (4)
- Not true... - tubemonger 12:23:44 07/21/06 (2)
- I wont generalize in the future - Jimmy 15:55:56 07/21/06 (0)
- Do you know who else made 12DW7/7247 tubes?nt - Orchardist 14:17:44 07/21/06 (0)
- Re: Sutured Top........ - lektrik 12:06:16 07/21/06 (0)