NJ7P SQL Tube Database Query

A horizontal ribbon.

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A horizontal ribbon.

31LZ6
Beam Power Tube

EIA Base & Outline

EIA Base: 9QL
Source ........................................ RCA RC-29 - 1975

Application

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

Mechanical Data

EIA Base ...................................... 9QL

Electrical Data

Heater Voltage ................................ 31 V
Heater Current ................................ 0.45 A

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

Characteristics and Typical Operation

Class A Amplifier
Plate Voltage ................................. 175 V
Grid No. 2 Voltage ............................ 125 V
Grid No. 1 Voltage ............................ -25 V
Plate Resistance (approx) ..................... 6K Ω
Transconductance .............................. 11K µMho
Plate Current ................................. 140 mA
Grid No. 2 Current ............................ 2 mA

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 ......................... 220 V
DC Grid No. 2 Voltage ......................... -330 V
Peak Negative-Pulse Grid No. 1 Voltage ........ 350 V
Average Cathode Current ....................... 1200 mA

A horizontal ribbon.

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A horizontal ribbon.

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Mon, 27 Jun 2022 08:51:37 -0700