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Bulb .......................................... T-5 1/2
EIA Outline ................................... 5-2
EIA Base ...................................... 5BZ
Filament Voltage .............................. 1.4 DC V
Filament Current .............................. 0.05 A
Pentode
Input ......................................... 3.4 pf
Output ........................................ 3.6 pf
Grid to Plate ................................. 0.12 pf
Pentode
Plate Voltage ................................. 110 V
Grid No. 2 Voltage ............................ 110 V
Class A Amplifier
Plate Voltage ................................. 45 V
Grid No. 2 Voltage ............................ 45 V
Grid No. 1 Voltage ............................ -4.5 V
Plate Resistance (approx) ..................... 400K Ω
Transconductance .............................. 650 µ
Plate Current ................................. 1.6 mA
Grid No. 2 Current ............................ 0.2 mA
Load Resistance ............................... 20K Ω
Power Output (approx) ......................... 0.035 W
Class A Amplifier
Plate Voltage ................................. 62.5 V
Grid No. 2 Voltage ............................ 62.5 V
Grid No. 1 Voltage ............................ -5 V
Plate Resistance (approx) ..................... 300K Ω
Transconductance .............................. 875 µ
Plate Current ................................. 3.8 mA
Grid No. 2 Current ............................ 0.8 mA
Load Resistance ............................... 16K Ω
Power Output (approx) ......................... 0.09 W
Class A Amplifier
Plate Voltage ................................. 67.5 V
Grid No. 2 Voltage ............................ 67.5 V
Grid No. 1 Voltage ............................ -6 V
Plate Resistance (approx) ..................... 300K Ω
Transconductance .............................. 875 µ
Plate Current ................................. 3.8 mA
Grid No. 2 Current ............................ 0.8 mA
Load Resistance ............................... 16K Ω
Power Output (approx) ......................... 0.1 W
Class A Amplifier
Plate Voltage ................................. 90 V
Grid No. 2 Voltage ............................ 90 V
Grid No. 1 Voltage ............................ -9 V
Plate Resistance (approx) ..................... 250K Ω
Transconductance .............................. 925 µ
Plate Current ................................. 5 mA
Grid No. 2 Current ............................ 1 mA
Load Resistance ............................... 12K Ω
Power Output (approx) ......................... 0.2 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
Mon, 30 Jan 2023 00:44:51 -0700