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Source ........................................ TungSol
Miniature type used as combined detector and avc-controlled af amplifier. Requires miniature 7-contact socket.
Source ........................................ TungSol
Bulb .......................................... T-5 1/2
Base Type ..................................... Miniature Button 7-Pin
EIA Outline ................................... 5-2
EIA Base ...................................... 7EA
Cathode ....................................... Coated Unipotential
Mounting Position ............................. Any
Source ........................................ TungSol
Heater Voltage ................................ 6.3 V
Heater Current ................................ 0.3 A
Pentode
Source ........................................ TungSol
Plate Voltage ................................. 300 V
Grid No. 2 Voltage ............................ 300 V
Plate Dissipation ............................. 2.5 W
Grid No. 2 Dissipation ........................ 0.3 W
Class A Amplifier
Source ........................................ TungSol
Plate Voltage ................................. 250 V
Grid No. 2 Voltage ............................ 100 V
Grid No. 1 Voltage ............................ -2 V
Plate Resistance (approx) ..................... 200K Ω
Transconductance .............................. 1950 µ
Plate Current ................................. 9.5 mA
Grid No. 2 Current ............................ 3 mA
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 00:27:49 -0700