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 ......................... 1G4
Substitutes ................................... 1H4
Source ........................................ Sylvania - 1959
Source ........................................ Sylvania - 1959
Bulb .......................................... T-9
Base Type ..................................... Octal
EIA Outline ................................... 9-25
EIA Base ...................................... 5S
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
Sun, 05 Feb 2023 19:16:06 -0700