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Subminiature type used as rf or if amplifier and oscillator in subminiature equipment. Requires either a subminiature socket or direct soldering of the wires from the tube to circuit components.
EIA Outline ................................... 3-1
EIA Base ...................................... 8DL
Heater Voltage ................................ 26.5 V
Heater Current ................................ 0.045 A
Pentode
Input ......................................... 4.4 pf
Output ........................................ 3.4 pf
Grid to Plate ................................. 0.015 pf
Pentode
Plate Voltage ................................. 55 V
Grid No. 2 Voltage ............................ 55 V
Class A Amplifier
Plate Voltage ................................. 26.5 V
Grid No. 2 Voltage ............................ 26.5 V
Grid No. 1 Voltage ............................ -0 V
Plate Resistance (approx) ..................... 110K Ω
Transconductance .............................. 2850 µ
Plate Current ................................. 2.1 mA
Grid No. 2 Current ............................ 0.9 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
Sun, 05 Feb 2023 20:20:36 -0700