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Voltage Triode Pentode ·Pentode-Triode

LCL84

Television triode-pentode with sync/control triode and video-output pentode; pentode plate dissipation is about 4 watts.

Directly heatedCold cathodeCommon cathodeDissimilar
Sections
2
Base
9HX
Socket code
B9A
Base pins
9
Nominal heater
10.2 V / 450 mA

Description

Miniature type used in color and black-and-white tele- vision-receiver applications. The triode unit is used as 9HX a sync-separator, sync-amplifier, keyed-age, or noise- suppressor tube. The pentode unit is used as a video-output tube. Outlines section, 6E; requires miniature 9-contact socket. Type 10DX8/LCL84 is identical with type 6DX8/ECL84 except for heater ratings. 6DX8/ECL84 10DX8/LCL84

Socket description

Small-button Noval 9-contact

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base
9HX
Socket code
B9A
Base pins
9
Nominal heater voltage
10.2 V
Nominal heater current
450 mA
Parallel heater voltage
-
Parallel heater current
-
Series capable
No

9HX - Terminal pinout

Electrical assignments shared by every tube using this base designation.

TerminalSectionConnectionEvidence
PIN1Base PinBG1 — Control Grid

Original chart label 2G1; manufacturer verification pending

Unverified

EIA Base Connections printed p133, 9HX

PIN2Base PinBP — Plate (Anode)

Original chart label 2P; manufacturer verification pending

Unverified

EIA Base Connections printed p133, 9HX

PIN3Base PinBK — Cathode

Original chart label 2K; manufacturer verification pending

Unverified

EIA Base Connections printed p133, 9HX

PIN4Base Pin—H — Heater

Original chart label H; manufacturer verification pending

Unverified

EIA Base Connections printed p133, 9HX

PIN5Base Pin—H — Heater

Original chart label H; manufacturer verification pending

Unverified

EIA Base Connections printed p133, 9HX

PIN6Base PinAP — Plate (Anode)

Original chart label 1P; manufacturer verification pending

Unverified

EIA Base Connections printed p133, 9HX

PIN7Base PinAG3 — Suppressor GridGroup 9HX7

Original chart label 1G3; manufacturer verification pending

Unverified

EIA Base Connections printed p133, 9HX

PIN7Base PinAK — CathodeGroup 9HX7

Original chart label 1K; manufacturer verification pending

Unverified

EIA Base Connections printed p133, 9HX

PIN7Base Pin—IS — Internal ScreenGroup 9HX7

Original chart label IS; manufacturer verification pending

Unverified

EIA Base Connections printed p133, 9HX

PIN8Base PinAG1 — Control Grid

Original chart label 1G1; manufacturer verification pending

Unverified

EIA Base Connections printed p133, 9HX

PIN9Base PinAG2 — Screen Grid

Original chart label 1G2; manufacturer verification pending

Unverified

EIA Base Connections printed p133, 9HX

Section ratings

2 physical sections, each with unique specifications.

Section 1

Triode

X-ray radiationInterelectrode capacitances
Plate resistance
6500 Ω
Transconductance
0.01 S
Amplification factor
65
Max plate voltage
300 V
Max plate dissipation
1 W
Max cathode current
12 mA

High-mu triode unit.

Section 2

Pentode

X-ray radiationInterelectrode capacitances
Plate resistance
100000 Ω
Transconductance
0.011 S
Max plate voltage
300 V
Max screen voltage
300 V
Max plate dissipation
4 W
Max screen dissipation
1.7 W
Max cathode current
40 mA

Sharp-cutoff video-output pentode unit; promoted characteristics use the 170 V published point.

Source-dependent data

Operating conditions by source

Each block preserves the test conditions and published values from one reference. Values from different sources are intentionally kept separate.

Data set 01

1975 RCA RC30

Published operating points and test conditions from this source.

SECTION 1

Triode

Characteristic

  • Heater Voltage (ac/dc)

    10.2 volts

    Published value from supplied target entry

  • Heater Current

    0.45 ampere

    Published value from supplied target entry

  • Plate Supply Voltage

    550 volts

    Published value from supplied target entry

  • Plate Voltage

    300 volts

    Published value from supplied target entry

  • Grid-No

    2

    Published value from supplied target entry

  • Grid-No

    300 volts

    Published value from supplied target entry

  • Cathode Current

    40 mA

    Published value from supplied target entry

  • Plate Dissipation

    4 watts

    Published value from supplied target entry

  • Grid-No

    1.7 watts

    Published value from supplied target entry

  • Plate Voltage

    220 volts

    Published value from supplied target entry

  • Grid-No

    200

    Published value from supplied target entry

  • Grid No.l Voltage

    -3.4 volts

    Published value from supplied target entry

  • Amplification Factor

    65

    Published value from supplied target entry

  • Mu-Factor, Grid-No

    36

    Published value from supplied target entry

  • Plate Resistance (Approx.)

    0.15 megohm

    Published value from supplied target entry

  • Transconductance

    10000

    Published value from supplied target entry

  • Plate Current

    18 mA

    Published value from supplied target entry

  • Grid-No

    3 mA

    Published value from supplied target entry

  • Heater Voltage (ac/dc)

    6.3 volts

    Published value from supplied target entry

  • Heater Current

    0.225 ampere

    Published value from supplied target entry

Other

  • Peak Heater-Cathode Voltage ±

    200 volts

    Published value from supplied target entry

Capacitance

  • Grid to Plate

    8 pF

    Published value from supplied target entry

  • Grid to Cathode and Heater

    2.2 pF

    Published value from supplied target entry

  • Plate to Cathode and Heater

    1.3 pF

    Published value from supplied target entry