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Subminiature type used as a general purpose amplifier 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 ...................................... 8DG
Heater Voltage ................................ 6.3 V
Heater Current ................................ 0.3 A
Each Section
Input ......................................... 2.1 pf
Output ........................................ 1.3 pf
Grid to Plate ................................. 1.4 pf
Each Section
Plate Voltage ................................. 165 V
Plate Dissipation ............................. 1.0 W
Class A Amplifier
Plate Voltage ................................. 100 V
Grid No. 1 Voltage Derived from
Cathode Bias Resistor ...................... 220 Ω
Amplification Factor .......................... 20
Plate Resistance (approx) ..................... 4000 Ω
Transconductance .............................. 5000 µ
Plate Current ................................. 8.5 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
Mon, 30 Jan 2023 01:19:34 -0700