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Oh! Ron, I may know what Brenda is talking about!
There IS a metal 6A7. But it is a Russian pentagrid tube, and is NOT pin-compatible with American 6A7.
This may confuse some falks - they are sold same way, as 6A7 on auctions.
It has that characteristic "ruffling" on top.
http://www.radiomuseum.org/tubes/tube_6a7~2.html
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RE: 38-15 Restoration - by morzh - 04-26-2013, 11:56 AM
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