In Reply to: ST-70 and PAS posted by markr1 on June 29, 2017 at 09:44:30:
If it does have original, old stock tubes, the markings on the glass are important to keep intact for the value of the tube. Unfortunately, after so may years, the markings can come off easily. If you can, try grabbing them where there are no markings or at least not markings that identify what kind of tube it is...
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Follow Ups
- The original tubes... - petercapo 13:53:21 07/01/17 (0)