Note: Please do not link down into my pages. I change this directory structure often and your links will not work correctly.
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Preferred Substitutes ......................... 10FD7 10FR7
Substitutes ................................... 10DR7
EIA Base ...................................... 9HF
Heater Voltage ................................ 10 V
Heater Current ................................ 0.6 A
For other characteristics and typical operation, see 6FD7
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, 16 Aug 2022 00:16:39 -0700