NJ7P SQL Tube Database Query

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6JB6A
Beam Power Pentode

EIA Base & Outline

EIA Base: 9QL

Substitute Data

Substitutes ................................... 6KM6 6JU6
Source ........................................ RCA RC-29 - 1975

Application

Source ........................................ RCA RC-29 - 1975
Novar type used as horizontal-deflection amplifiers in tv receivers. Requires novar 9-contacts socket.

Mechanical Data

Source ........................................ RCA RC-29 - 1975
Bulb .......................................... T-12
Base Type ..................................... Novar 9-Pin
Maximum Overall Height ........................ 3.505 In.
Maximum Seated Height ......................... 3.125 In.
Maximum Diameter .............................. 1.563 In.
EIA Base ...................................... 9QL
Top Cap ....................................... Skirted Miniature C1-2 or C1-3
Cathode ....................................... Coated Unipotential
Mounting Position ............................. Any

Electrical Data

Source ........................................ RCA RC-29 - 1975
Heater Voltage ................................ 6.3 V
Heater Current ................................ 1.2 A
Maximum Heater-Cathode Voltage
Heater Positive with Respect to Cathode
Total DC and Peak ....................... 200 V
Heater Negative with Respect to Cathode
DC Component ............................ 100 V
Total DC and Peak ....................... 200 V

Direct Interelectrode Capacitances (approx)

Pentode
Source ........................................ RCA RC-29 - 1975
Input ......................................... 15 pf
Output ........................................ 6 pf
Grid to Plate ................................. 0.2 pf

Maximum Ratings (Design Center Values)

Pentode
Source ........................................ RCA RC-29 - 1975
Plate Voltage ................................. 770 V
Grid No. 2 Voltage ............................ 220 V
Plate Dissipation ............................. 17.5 W
Grid No. 2 Dissipation ........................ 3.5 W

Characteristics and Typical Operation

Class A Amplifier
Source ........................................ RCA RC-29 - 1975
Plate Voltage ................................. 250 V
Grid No. 2 Voltage ............................ 150 V
Grid No. 1 Voltage ............................ -22.5 V
Plate Resistance (approx) ..................... 15000 Ω
Transconductance .............................. 7100 µMho
Plate Current ................................. 70 mA
Grid No. 2 Current ............................ 2.1 mA

Class C Amplifier [ARRL-71]
Source ........................................ RCA RC-29 - 1975
Plate Voltage ................................. 500 V
Grid No. 2 Voltage ............................ 200 V
Grid No. 1 Voltage ............................ -75 V
Plate Current ................................. 180 mA
Grid No. 2 Current ............................ 13.3 mA
Power Output (approx) ......................... 62.7 W
Maximum Frequency ............................. 145 MHz

Class AB1 Amplifier [ARRL-71]
Source ........................................ RCA RC-29 - 1975
Plate Voltage ................................. 500 V
Grid No. 2 Voltage ............................ 200 V
Grid No. 1 Voltage ............................ -42 V
Plate Current (Zero Signal) ................... 30 mA
Plate Current (Maximum Signal) ................ 85 mA
Grid No. 2 Current ............................ 4.2 mA
Power Output (approx) ......................... 35 W
Maximum Frequency ............................. 145 MHz

Class AB1 Amplifier [TR-4]
Source ........................................ RCA RC-29 - 1975
Plate Voltage ................................. 650 V
Grid No. 2 Voltage ............................ 225 V
Grid No. 1 Voltage ............................ -62 V
Plate Current (Zero Signal) ................... 33 mA
Plate Current (Maximum Signal) ................ 166 mA
Grid No. 2 Current ............................ 4.2 mA
Power Output (approx) ......................... 65 W
Maximum Frequency ............................. 145 MHz

Hortz Defl Amplifier
Source ........................................ RCA RC-29 - 1975
DC Plate Supply Voltage ....................... 770 V
Peak Positive-Pulse Plate Voltage ............. 6500 V
Peak Negative-Pulse Plate Voltage ............. 1500 V
DC Grid No. 3 Voltage ......................... 70 V
DC Grid No. 2 Voltage ......................... 220 V
Peak Negative-Pulse Grid No. 1 Voltage ........ 330 V
Average Cathode Current ....................... 175 mA
Peak Cathode Current .......................... 550 mA
Plate Dissipation ............................. 17.5 W
Grid No. 2 Dissipation ........................ 3.5 W

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Wed, 07 Dec 2022 14:13:05 -0700