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6LY8

Combined triode-pentode for television video, sync, burst, IF, AGC, or related signal-processing circuits.

Directly heatedCold cathodeCommon cathodeDissimilar

Sections: 2
Base: 9DX
Socket code: B9A
Base pins: 9
Nominal heater: 6.3 V / 750 mA

Description

Miniature type used in color and black-and-white tele- vision receiver applications. The pentode unit is used as a video amplifier, and the triode unit for general- purpose use. Outlines section, 6E; requires 9-contact socket. Type 10LY8 is identical with type 6LY8 ex- cept for heater ratings. 9DX : : : Technical Data 367 6LY8 10LY8

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: 9DX
Socket code: B9A
Base pins: 9
Nominal heater voltage: 6.3 V
Nominal heater current: 750 mA
Parallel heater voltage: -
Parallel heater current: -
Series capable: No

9DX - Terminal pinout

Electrical assignments shared by every tube using this base designation.

Terminal	Section	Connection	Evidence
PIN12K	B	K — Cathode EIA transcription; manufacturer confirmation pending	Unverified EIA Base Connections, printed page 131, 9DX
PIN22G1	B	G1 — Control Grid EIA transcription; manufacturer confirmation pending	Unverified EIA Base Connections, printed page 131, 9DX
PIN32P	B	P — Plate (Anode) EIA transcription; manufacturer confirmation pending	Unverified EIA Base Connections, printed page 131, 9DX
PIN4H	—	H — Heater EIA transcription; manufacturer confirmation pending	Unverified EIA Base Connections, printed page 131, 9DX
PIN5H	—	H — Heater EIA transcription; manufacturer confirmation pending	Unverified EIA Base Connections, printed page 131, 9DX
PIN61G3	A	G3 — Suppressor GridGroup 9DX6 EIA transcription; manufacturer confirmation pending	Unverified EIA Base Connections, printed page 131, 9DX
PIN6IS	A	IS — Internal ScreenGroup 9DX6 EIA transcription; manufacturer confirmation pending	Unverified EIA Base Connections, printed page 131, 9DX
PIN61K	A	K — CathodeGroup 9DX6 EIA transcription; manufacturer confirmation pending	Unverified EIA Base Connections, printed page 131, 9DX
PIN71G1	A	G1 — Control Grid EIA transcription; manufacturer confirmation pending	Unverified EIA Base Connections, printed page 131, 9DX
PIN81G2	A	G2 — Screen Grid EIA transcription; manufacturer confirmation pending	Unverified EIA Base Connections, printed page 131, 9DX
PIN91P	A	P — Plate (Anode) EIA transcription; manufacturer confirmation pending	Unverified EIA Base Connections, printed page 131, 9DX

Section ratings

2 physical sections, each with unique specifications.

Section 1

Pentode

X-ray radiationInterelectrode capacitances

Plate resistance: 60000 Ω
Transconductance: 0.02 S
Max plate voltage: 330 V
Max screen voltage: 330 V
Max plate dissipation: 5 W
Max screen dissipation: 1.1 W

Full supplied entry reviewed for ratings, characteristics, operating data, and capacitances.

Section 2

Triode

X-ray radiationInterelectrode capacitances

Plate resistance: 59000 Ω
Transconductance: 0.0017 S
Amplification factor: 100
Max plate voltage: 330 V
Max plate dissipation: 1 W

Full supplied entry reviewed for ratings, characteristics, operating data, and capacitances.

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

1968 General Electric Co

Published operating points and test conditions from this source.

SECTION 1

Pentode

Other

Maximum Plate Voltage
330 V
Maximum Screen Voltage
330 V
Maximum Plate Dissipation
5 W
Maximum Screen Dissipation
1.1 W

Characteristic

Plate Resistance
60000 ohm
Transconductance
20000 uS
Interelectrode Capacitances Published
true

SECTION 2

Triode

Other

Maximum Plate Voltage
330 V
Maximum Plate Dissipation
1 W

Characteristic

Plate Resistance
59000 ohm
Transconductance
1700 uS
Amplification Factor
100
Interelectrode Capacitances Published
true

Data set 02

1975 RCA RC30

Published operating points and test conditions from this source.

SECTION 2

Triode

Other

Heater Voltage
10.5 volts
Published value from supplied target entry
Heater Current
0.45 ampere
Published value from supplied target entry
Heater Warm-up Time (Average)
11 seconds
Published value from supplied target entry
Plate Voltage
330 volts
Published value from supplied target entry
Grid-No
330 volts
Published value from supplied target entry
Grid-No
300
Published value from supplied target entry
Grid-No.l (Control-Grid) Voltage, Positive-bias value
0 volts
Published value from supplied target entry
Plate Dissipation
5 watts
Published value from supplied target entry
Grid-No
2
Published value from supplied target entry
For grid-No
1.1 volts
Published value from supplied target entry
Por grid-No
300 volts
Published value from supplied target entry
Plate Voltage
200 volts
Published value from supplied target entry
Grid-No
100 volts
Published value from supplied target entry
Grid-No.l Voltage —
0 volts
Published value from supplied target entry
Amplification Factor
100
Published value from supplied target entry
Plate Current
19.5 mA
Published value from supplied target entry
Grid-No
3 mA
Published value from supplied target entry
Heater Voltage (ac/dc)
6.3
Published value from supplied target entry
Heater Current
0.77 ampere
Published value from supplied target entry
Plate Dissipation
3.1 watts
Published value from supplied target entry
For voltages up to
0.65 volts
Published value from supplied target entry
For voltages between
300 volts
Published value from supplied target entry

Capacitance

Grid to Plate
1.8 PF
Published value from supplied target entry
Plate to Cathode, Grid No
2.8 pF
Published value from supplied target entry