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Source ........................................ ARRL HB - 1964
Miniature type used as general purpose triode amplifier and pentode video amplifier. Requires miniature 9-contct socket.
Source ........................................ ARRL HB - 1964
Bulb .......................................... T-6 1/2
Base Type ..................................... Small Button 9-Pin
EIA Outline ................................... 6-2
EIA Base ...................................... 9DA
Cathode ....................................... Coated Unipotential
Mounting Position ............................. Any
Source ........................................ ARRL HB - 1964
Heater Voltage ................................ 12.6 V
Heater Current ................................ 0.3 A
Pentode
Source ........................................ ARRL HB - 1964
Input ......................................... 7.5 pf
Output ........................................ 2.4 pf
Grid to Plate ................................. 0.044 pf
Triode
Source ........................................ ARRL HB - 1964
Input ......................................... 2.4 pf
Output ........................................ 0.19 pf
Grid to Plate ................................. 2.2 pf
Pentode
Source ........................................ ARRL HB - 1964
Plate Voltage ................................. 300 V
Plate Dissipation ............................. 2.5 W
Triode
Source ........................................ ARRL HB - 1964
Plate Voltage ................................. 300 V
Grid No. 2 Voltage ............................ 300 V
Plate Dissipation ............................. 2.75 W
Grid No. 2 Dissipation ........................ 0.9 W
Triode Class A Amplifier
Source ........................................ ARRL HB - 1964
Plate Voltage ................................. 150 V
Grid No. 1 Voltage ............................ -6.5 V
Amplification Factor .......................... 40
Plate Resistance (approx) ..................... 8.2K Ω
Transconductance .............................. 4400 µ
Plate Current ................................. 9 mA
Pentode Class A Amplifier
Source ........................................ ARRL HB - 1964
Plate Voltage ................................. 200 V
Grid No. 2 Voltage ............................ 125 V
Grid No. 1 Voltage ............................ -8 V
Plate Resistance (approx) ..................... 150K Ω
Transconductance .............................. 7000 µ
Plate Current ................................. 15 mA
Grid No. 2 Current ............................ 3.4 mA
Triode Class A Amplifier
Source ........................................ ARRL HB - 1964
Plate Voltage ................................. 150 V
Grid No. 1 Voltage Derived from
Cathode Bias Resistor ...................... 150 Ω
Amplification Factor .......................... 40
Plate Resistance (approx) ..................... 8.2K Ω
Transconductance .............................. 4900 µ
Plate Current ................................. 9 mA
Pentode Class A Amplifier
Source ........................................ ARRL HB - 1964
Plate Voltage ................................. 200 V
Grid No. 2 Voltage ............................ 125 V
Grid No. 1 Voltage Derived from
Cathode Bias Resistor ...................... 82 Ω
Plate Resistance (approx) ..................... 150K Ω
Transconductance .............................. 7000 µ
Plate Current ................................. 15 mA
Grid No. 2 Current ............................ 3.4 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
Thu, 11 Aug 2022 12:55:04 -0700