Note: Please do not link down into my pages. I change this directory structure often and your links will not work correctly.
![]() | ![]() |
Preferred Substitutes ......................... 6AG7
Source ........................................ GE - 1973
Source ........................................ GE - 1973
Bulb .......................................... MT-8
EIA Outline ................................... 8-6
EIA Base ...................................... 8Y
Source ........................................ GE - 1973
Heater Voltage ................................ 6.3 V
Heater Current ................................ 0.65 A
Pentode
Source ........................................ GE - 1973
Input ......................................... 13 pf
Output ........................................ 7.5 pf
Grid to Plate ................................. 0.06 pf
Pentode
Source ........................................ GE - 1973
Plate Voltage ................................. 300 V
Grid No. 2 Voltage ............................ 300 V
Plate Dissipation ............................. 9.0 W
Grid No. 2 Dissipation ........................ 1.5 W
Class A Amplifier
Source ........................................ GE - 1973
Plate Voltage ................................. 300 V
Grid No. 2 Voltage ............................ 150 V
Grid No. 1 Voltage ............................ -3.0 V
Plate Resistance (approx) ..................... 130K Ω
Transconductance .............................. 11000 µ
Plate Current ................................. 30 mA
Grid No. 2 Current ............................ 7.0 mA
Load Resistance ............................... 10K Ω
Power Output (approx) ......................... 3 W
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 06:32:56 -0700