Note: Please do not link down into my pages. I change this directory structure often and your links will not work correctly.
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Preferred Substitutes ......................... 6AF4
Substitutes ................................... 6AN4 6AF4 6DX4
Source ........................................ Sylvania 1959
Source ........................................ Sylvania 1959
Miniature type used as an oscillator in UHF television applications. Requires miniature 7-contact socket.
Source ........................................ Sylvania 1959
Bulb .......................................... T-5 1/2
Base Type ..................................... Miniature Button 7-Pin
EIA Outline ................................... 5-1
EIA Base ...................................... 7DK
Mounting Position ............................. Any
Source ........................................ Sylvania 1959
Heater Voltage ................................ 6.3 V
Heater Current ................................ 0.225 A
Triode
Source ........................................ Sylvania 1959
Shielded Unshielded
Input ......................................... 3.3 2.6 pf
Output ........................................ 2.0 0.4 pf
Grid to Plate ................................. 1.7 1.7 pf
Triode
Source ........................................ Sylvania 1959
Plate Voltage ................................. 200 V
Plate Dissipation ............................. 3.5 W
Cathode Current ............................... 30 mA
Class A Amplifier
Source ........................................ Sylvania 1959
Plate Voltage ................................. 80 V
Grid No. 1 Voltage Derived from
Cathode Bias Resistor ...................... 150 Ω
Amplification Factor .......................... 13
Plate Resistance (approx) ..................... 1860 Ω
Transconductance .............................. 7000 µ
Plate Current ................................. 18 mA
Class C Oscillator (950 MHz)
Source ........................................ Sylvania 1959
Plate Voltage ................................. 80 V
Grid No. 1 Voltage ............................ -4 V
Plate Current ................................. 18 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 14:12:42 -0700