NJ7P SQL Tube Database Query

A horizontal ribbon.

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A horizontal ribbon.

6DQ5
Beam Power Amplifier

EIA Base & Outline

EIA Base: 8JCEIA Bulb: 12-21

Substitute Data

Substitutes ................................... 6CD6 6EX6
Source ........................................ RCA RC-29 - 1975

Application

Source ........................................ RCA RC-29 - 1975
Glass octal type used as horizontal-deflection amplifier in color and black-and-white television receivers. Requires octal socket.

Mechanical Data

Source ........................................ RCA RC-29 - 1975
Bulb .......................................... T-12
Base Type ..................................... Short Medium Shell Octal 8-Pin
EIA Outline ................................... 12-21
EIA Base ...................................... 8JC
Cathode ....................................... Coated Unipotential
Mounting Position ............................. Any

Electrical Data

Source ........................................ RCA RC-29 - 1975
Heater Voltage ................................ 6.3 V
Heater Current ................................ 2.5 A

Direct Interelectrode Capacitances (approx)

Beam Pentode
Source ........................................ RCA RC-29 - 1975
Input ......................................... 23 pf
Output ........................................ 11 pf
Grid to Plate ................................. 0.5 pf

Maximum Ratings (Design Center Values)

Beam Pentode
Source ........................................ RCA RC-29 - 1975
Plate Voltage ................................. 990 V
Grid No. 2 Voltage ............................ 190 V
Plate Dissipation ............................. 24 W
Grid No. 2 Dissipation ........................ 3.2 W

Characteristics and Typical Operation

Class A Amplifier
Source ........................................ RCA RC-29 - 1975
Plate Voltage ................................. 175 V
Grid No. 2 Voltage ............................ 125 V
Grid No. 1 Voltage ............................ -25 V
Plate Resistance (approx) ..................... 5.5K Ω
Transconductance .............................. 10.5K µMho
Plate Current ................................. 110 mA
Grid No. 2 Current ............................ 5 mA

Class A Amplifier
Source ........................................ RCA RC-29 - 1975
Plate Voltage ................................. 70 V
Grid No. 2 Voltage ............................ 125 V
Grid No. 1 Voltage ............................ 0 V
Plate Current ................................. 550 mA
Grid No. 2 Current ............................ 42 mA

Class C Amplifier/Oscillator [ARRL-64]
Source ........................................ RCA RC-29 - 1975
Plate Voltage ................................. 400 V
Grid No. 2 Voltage ............................ 225 V
Grid No. 1 Voltage ............................ -141 V
Grid No. 1 Voltage Derived from
Grid No. 1 Resistor ........................ 47K Ω
Grid No. 1 Current ............................ 3.0 mA
Plate Current (Maximum Signal) ................ 180 mA
Power Output (approx) ......................... 75 W

Horizontal Amplifier
Source ........................................ RCA RC-29 - 1975
DC Plate Supply Voltage ....................... 990 V
Peak Positive-Pulse Plate Voltage ............. 6500 V
Peak Negative-Pulse Plate Voltage ............. 1100 V
DC Grid No. 2 Voltage ......................... 190 V
Peak Negative-Pulse Grid No. 1 Voltage ........ 250 V
Average Cathode Current ....................... 315 mA
Peak Cathode Current .......................... 1100 mA
Plate Dissipation ............................. 24 W
Grid No. 2 Dissipation ........................ 3.2 W

A horizontal ribbon.

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A horizontal ribbon.

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Fri, 19 Aug 2022 06:54:07 -0700