NJ7P SQL Tube Database Query

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6DQ6A
Beam Power Amplifier

EIA Base & Outline

Substitute Data

Preferred Substitutes ......................... 6FH6 6GW6
Source ........................................ GE - 1973

Application

Source ........................................ GE - 1973
Glass octal type used as horizontal deflection amplifier in television receivers. Requires octal socket.

Mechanical Data

Source ........................................ GE - 1973
Bulb .......................................... T-12
Base Type ..................................... Short Medium Shell Octal 7 or 8-Pin
EIA Outline ................................... 12-19
EIA Base ...................................... 6AM
Top Cap ....................................... Skirted Miniature
Cathode ....................................... Coated Unipotential
Mounting Position ............................. Any

Electrical Data

Source ........................................ GE - 1973
Heater Voltage ................................ 6.3 V
Heater Current ................................ 1.2 A

Direct Interelectrode Capacitances (approx)

Beam Pentode
Source ........................................ GE - 1973
Input ......................................... 15 pf
Output ........................................ 7.0 pf
Grid to Plate ................................. 0.55 pf

Maximum Ratings (Design Center Values)

Beam Pentode
Source ........................................ GE - 1973
Plate Voltage ................................. 770 V
Grid No. 2 Voltage ............................ 200 V
Plate Dissipation ............................. 18 W
Grid No. 2 Dissipation ........................ 3.5 W

Characteristics and Typical Operation

Class A Amplifier
Source ........................................ GE - 1973
Plate Voltage ................................. 250 V
Grid No. 2 Voltage ............................ 150 V
Grid No. 1 Voltage ............................ -22.5 V
Transconductance .............................. 6600 µ
Plate Current ................................. 75 mA
Grid No. 2 Current ............................ 2.4 mA

Class C Amplifier/Oscillator [ARRL-64]
Source ........................................ GE - 1973
Plate Voltage ................................. 370 V
Grid No. 2 Voltage ............................ 150 V
Grid No. 1 Voltage Derived from
Grid No. 1 Resistor ........................ 47K Ω
Plate Current (Maximum Signal) ................ 100 mA
Grid No. 2 Current (Maximum Signal) ........... 5 mA
Power Output (approx) ......................... 30 W

Horizontal Amplifier
Source ........................................ GE - 1973
DC Plate Supply Voltage ....................... 700 V
Peak Positive-Pulse Plate Voltage ............. 6000 V
Peak Negative-Pulse Plate Voltage ............. -1375 V
DC Grid No. 3 Voltage ......................... 200 V
DC Grid No. 2 Voltage ......................... -300 V
Peak Negative-Pulse Grid No. 1 Voltage ........ 140 V
Average Cathode Current ....................... 440 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, 27 Jun 2022 10:55:46 -0700