D3a Tube Question

Could someone please explain what "Post Gabl" means when etched on a D3a output tube? I saw some NOS D3a's on eBay without this etching, yet my current tube has the "post gabl" etching.

Thanks!

labpro09-30-2017 4:11pm

Showing 2 responses by dekay

dekay Details Discussions Posts This discussion Message User 5,705 posts 09-30-2017 at 04:53pm Copy Comment URL Report Comment Edit Delete Something to do with government use. However I've never seen "post" used with "gabl" (usually 3 letters and one is a "b" - don't recall the rest). DeKay
dekay Details Discussions Posts This discussion Message User 5,705 posts 10-01-2017 at 10:13pm Copy Comment URL Report Comment Edit Delete I may be mistaken about the "3 letters" and confusing that with something else, but I'm certain that I once translated a page in German (to English) to find the government connection of GABL. Tried Googling for it but came up with zip. DeKay

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