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This Post Has Been Edited by the Author
In Reply to: RE: Which vintage DHt tube would be close to 6j5 ? posted by Wojciech on March 17, 2023 at 15:56:20
See link below.
The 27 was an indirectly heated 26, it appears -- and you probably know the story from the 27 through to the 6J5 and then 6SN7 already (and at least as well as I). If not, you can see their entries on the same website and/or look in any tube manual(s) of the proper era(s). :)
all the best,
mrh
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