Note: Please do not link down into my pages. I change this directory structure often and your links will not work correctly.
![]() |
Preferred Substitutes ......................... 12AX4
Substitutes ................................... 25D4
EIA Base ...................................... 4CG
Heater Voltage ................................ 25 V
Heater Current ................................ 0.3 A
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
Wed, 29 Mar 2023 06:46:19 -0700