NJ7P SQL Tube Database Query

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A horizontal ribbon.

6KY8A
High-Mu Triode - Beam Power Pentode

EIA Base & Outline

EIA Base: 9QTEIA Bulb: 9-107
Source ........................................ RCA RC-29 - 1975

Application

Source ........................................ RCA RC-29 - 1975
Novar type used in combined vertical-deflection oscillator and amplifier in bw tv receivers. Requires novar 9-contact socket.

Mechanical Data

Source ........................................ RCA RC-29 - 1975
Bulb .......................................... T-9
Base Type ..................................... Small Button Novar 9-Pin with Exhaust Tip
EIA Outline ................................... 9-107
EIA Base ...................................... 9QT
Cathode ....................................... Coated Unipotential
Mounting Position ............................. Any

Electrical Data

Source ........................................ RCA RC-29 - 1975
Heater Voltage ................................ 6.3 V
Heater Current ................................ 1.1 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
Total DC and Peak ....................... 200 V

Direct Interelectrode Capacitances (approx)

Pentode
Source ........................................ RCA RC-29 - 1975
Input ......................................... 2.6 pf
Output ........................................ 0.28 pf
Grid to Plate ................................. 0.048 pf

Triode
Source ........................................ RCA RC-29 - 1975
Input ......................................... 15 pf
Output ........................................ 7 pf
Grid to Plate ................................. 0.44 pf

Maximum Ratings (Design Center Values)

Pentode
Source ........................................ RCA RC-29 - 1975
Plate Voltage ................................. 300 V
Grid No. 2 Voltage ............................ 250 V
Plate Dissipation ............................. 12 W
Grid No. 2 Dissipation ........................ 1.9 W
Grid No. 1 Circuit Resistance
Fixed Bias ................................. 2.2M Ω

Triode
Source ........................................ RCA RC-29 - 1975
Plate Voltage ................................. 330 V
Plate Dissipation ............................. 1.5 W
Grid No. 1 Circuit Resistance
Fixed Bias ................................. 2.2M Ω

Characteristics and Typical Operation

Triode Class A Amplifier
Source ........................................ RCA RC-29 - 1975
Plate Voltage ................................. 250 V
Grid No. 1 Voltage ............................ -3 V
Amplification Factor .......................... 64
Plate Resistance (approx) ..................... 40K Ω
Transconductance .............................. 1600 µMho
Plate Current ................................. 1.4 mA

Pentode Class A Amplifier
Source ........................................ RCA RC-29 - 1975
Plate Voltage ................................. 135 V
Grid No. 2 Voltage ............................ 120 V
Grid No. 1 Voltage ............................ -10 V
Plate Resistance (approx) ..................... 18K Ω
Transconductance .............................. 8400 µMho
Plate Current ................................. 39 mA
Grid No. 2 Current ............................ 3 mA
Grid No. 1 Voltage for Ib ..................... 1000 µa @ -24 V

Vert Defl Amplifier
Source ........................................ RCA RC-29 - 1975
DC Plate Supply Voltage ....................... 300 V
Peak Positive-Pulse Plate Voltage ............. 2000 V
DC Grid No. 2 Voltage ......................... 150 V
Peak Negative-Pulse Grid No. 1 Voltage ........ 250 V
Average Cathode Current ....................... 70 mA
Peak Cathode Current .......................... 200 mA
Plate Dissipation ............................. 12 W
Grid No. 2 Dissipation ........................ 1.9 W

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Mon, 15 Aug 2022 18:17:00 -0700