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6LQ6
Beam Power Pentode

Base & Bulb ( RCA RC-29 - 1975)

Substitute Data

Preferred Substitutes ......................... 6JE6

Application

Novar type used as horizontal-deflection amplifier in color and bw tv receivers. Requires novar 9-contact socket.

Mechanical Data

Bulb .......................................... T-12
Outline ....................................... 12-117
EIA Base ...................................... 9QL
Cathode ....................................... Coated Unipotential
Mounting Position ............................. Any

Electrical Data

Heater Voltage ................................ 6.3 V
Heater Current ................................ 2.5 A
Maximum Heater-Cathode Voltage
Heater Positive with Respect to Cathode
DC Component .............................. 100 V
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
Input ......................................... 22 pf
Output ........................................ 11 pf
Grid to Plate ................................. 0.6 pf

Maximum Ratings (Design Center Values)

Pentode
Plate Voltage ................................. 990 V
Grid No. 2 Voltage ............................ 220 V
Plate Dissipation ............................. 30 W
Grid No. 2 Dissipation ........................ 5 W
Grid No. 1 Circuit Resistance
Fixed Bias .................................. 0.47M Ω
Bulb Temperature (At Hottest Point) ........... 250 °C

Characteristics and Typical Operation

Class A Amplifier
Plate Voltage ................................. 175 V
Grid No. 2 Voltage ............................ 145 V
Grid No. 1 Voltage ............................ -35 V
Amplification Factor .......................... 2.8
Plate Resistance (approx) ..................... 7000 Ω
Transconductance .............................. 7500 µ
Plate Current ................................. 95 mA
Grid No. 2 Current ............................ 2.4 mA
Grid No. 1 Voltage for Ib ..................... 1000 µa @ -60 V

Characteristics and Typical Operation

Hortz Defl Amplifier
DC Plate Supply Voltage ....................... 990 V
Peak Positive-Pulse Plate Voltage ............. 7500 V
Peak Negative-Pulse Plate Voltage ............. 1100 V
DC Grid No. 3 Voltage ......................... 75 V
DC Grid No. 2 Voltage ......................... 220 V
Peak Negative-Pulse Grid No. 1 Voltage ........ 330 V
Average Cathode Current ....................... 350 mA
Peak Cathode Current .......................... 1200 mA
Plate Dissipation ............................. 30 W
Grid No. 2 Dissipation ........................ 5 W

Characteristic Curves

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