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Glass type used in output stage of audio frequency amplifiers. Requires four-contact socket.
For other characteristics and typical operation, see 71A
If you are uncertain about the EIA designator for a particular tube please use the "Index" button to list all the tubes in the database. You can click on the designator for the closest tube.
(c) 1994-2021 by William A. Beech, NJ7P
Tue, 29 Nov 2022 16:54:43 -0700