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Voltage - Dual Triode (similar) ·Triode-Triode

6350

High-perveance medium-mu twin triode designed for high-speed digital-computer, on-off control, and cathode-follower service, with substantial pulse-voltage and peak-current capability for rapid switching circuits.

Directly heatedCold cathodeCommon cathodeDissimilar

Sections: 2
Base: 9CZ
Socket code: B9A
Base pins: 9
Nominal heater: 6.3 V / 600 mA

Description

High-perveance medium-mu twin triode for high-speed digital-computer and cathode-follower service.

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: 9CZ
Socket code: B9A
Base pins: 9
Nominal heater voltage: 6.3 V
Nominal heater current: 600 mA
Parallel heater voltage: 6.3 V
Parallel heater current: 600 mA
Series capable: Yes

9CZ - Terminal pinout

Electrical assignments shared by every tube using this base designation.

Terminal	Section	Connection	Evidence
PIN12P	B	P — Plate (Anode) Original EIA label 2P; manufacturer corroboration pending	Unverified EIA Base Connections, printed page 131, 9CZ
PIN22K	B	K — Cathode Original EIA label 2K; manufacturer corroboration pending	Unverified EIA Base Connections, printed page 131, 9CZ
PIN32G1	B	G1 — Control Grid Original EIA label 2G1; manufacturer corroboration pending	Unverified EIA Base Connections, printed page 131, 9CZ
PIN4H	—	H — Heater Original EIA label H; manufacturer corroboration pending	Unverified EIA Base Connections, printed page 131, 9CZ
PIN5H	—	H — Heater Original EIA label H; manufacturer corroboration pending	Unverified EIA Base Connections, printed page 131, 9CZ
PIN61P	A	P — Plate (Anode) Original EIA label 1P; manufacturer corroboration pending	Unverified EIA Base Connections, printed page 131, 9CZ
PIN71K	A	K — Cathode Original EIA label 1K; manufacturer corroboration pending	Unverified EIA Base Connections, printed page 131, 9CZ
PIN81G1	A	G1 — Control Grid Original EIA label 1G1; manufacturer corroboration pending	Unverified EIA Base Connections, printed page 131, 9CZ
PIN9HCT	—	HCT — Heater Center Tap Original EIA label HCT; manufacturer corroboration pending	Unverified EIA Base Connections, printed page 131, 9CZ

Section ratings

2 physical sections, each with unique specifications.

Section 1

Triode

X-ray radiationInterelectrode capacitances

Plate resistance: 3900 Ω
Transconductance: 0.0046 S
Amplification factor: 18
Max plate voltage: 330 V
Max plate dissipation: 4 W
Max cathode current: 45 mA

Representative electrical row for repeated identical physical sections.

Section 2

Triode

X-ray radiationInterelectrode capacitances

Plate resistance: 3900 Ω
Transconductance: 0.0046 S
Amplification factor: 18
Max plate voltage: 330 V
Max plate dissipation: 4 W
Max cathode current: 45 mA

Second identical physical triode section; added to align rows with SectionCount.

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

1940 RCA

Published operating points and test conditions from this source.

SECTION 1

Triode

Application

Application
Computer_OnOffControl text

Data set 02

1950 Sylvania

Published operating points and test conditions from this source.

SECTION 1

Triode

Other

Peak positive plate voltage
1000 V
Pulse
Peak cathode current
300 mA
Pulse

Characteristic

Characteristic plate voltage
150 V
EachSection

Data set 03

1960 RCA Industrial and Communications Types

Published operating points and test conditions from this source.

SECTION 1

Triode

Characteristic

Heater Voltage
12.6 V
Heater Current
300 mA
Transconductance
4600 uS
EachUnit

Other

Peak Positive Pulse Plate Voltage
1000 V
CathodeFollower

Data set 04

1965 Sylvania Electronic Tubes Vol3

Published operating points and test conditions from this source.

SECTION 1

Triode

Characteristic

Heater Voltage Series
12.6 V
Heater Current Series
300 mA
Heater Voltage Parallel
6.3 V
Heater Current Parallel
600 mA
Transconductance
4600 uS
EachUnit

Other

HeaterCathodeVoltageMaximum
200 V
PeakPositivePlateVoltage
1000 V
Negative Grid Voltage Maximum
75 V
PositiveGridVoltageMaximum
3.5 V
PeakNegativeGridVoltage
400 V
PeakPositiveGridVoltage
13 V
AveragePositiveGridCurrent
5 mA
PeakPositiveGridCurrent
100 mA
Average Cathode Current
25 mA
Peak Cathode Current
300 mA
PlateDissipationPerPlate
3.5 W
PlateDissipationBothPlates
7 W

Data set 05

1971 RCA HB3 Binder 3 of 7

Published operating points and test conditions from this source.

SECTION 1

Triode

Other

Heater voltage
6.3 V
Nominal
Heater current
600 mA
Nominal
Heater voltage series
12.6 V
Series
Heater current series
300 mA
Series
Heater voltage parallel
6.3 V
Parallel
Heater current parallel
600 mA
Parallel
Maximum plate voltage
330 V
Promoted published value
Maximum plate dissipation
4 W
Promoted published value
Maximum cathode current
45 mA
Promoted published value
Grid to grid x.042 max. µµt
42 mA
~~;id Voltage
-5 V
Characteristics, Class A~ Aapl ifier (Each Unit):
Ct .50 volts and pl=le current of
-11 V
Characteristics, Class A~ Aapl ifier (Each Unit):
of 200 volts and olate current of 1 ma -12 volts
-12 V
Characteristics, Class A~ Aapl ifier (Each Unit):
DC PLATE VOLTAGE
330 V
Maximum Ratings, Absolute Values:
PEAK POSITIVE-PULSE PLATE VOLTAGE`
1000 V
Maximum Ratings, Absolute Values:
PEAK NEGATIVE-PULSE GRID VOLTAf,E'
440 V
Maximum Ratings, Absolute Values:
PEAK POSITIVE-PULSE GRID VOLTAGE`
14 V
Maximum Ratings, Absolute Values:
DC GRID CURRENT
5.5 mA
Maximum Ratings, Absolute Values:
PEAK GRID CURRENT'
110 mA
Maximum Ratings, Absolute Values:
DC CATHODE CURRENT
45 mA
Maximum Ratings, Absolute Values:
PEAK CATHODE CURRENT*
350 mA
Maximum Ratings, Absolute Values:
Either plate
4 W
Maximum Ratings, Absolute Values:
Both plates (Both units operating)
7 W
Maximum Ratings, Absolute Values:
Heater negative with respect to cathode
220 V
Maximum Ratings, Absolute Values:
Heater positive with respect to cathode
220 V
Maximum Ratings, Absolute Values:
For cathode-bias operation
0.5 megohm
Maximum Ratings, Absolute Values:
Heater Current
325 mA
CHARACTERISTICS RANGE VALUES FOR EQUIPMENT DESIGN
Note
12.6 V
CHARACTERISTICS RANGE VALUES FOR EQUIPMENT DESIGN
Note
100 V
CHARACTERISTICS RANGE VALUES FOR EQUIPMENT DESIGN
Under the fol lowing conditions: heater volts =
7.5 V
CHARACTERISTICS RANGE VALUES FOR EQUIPMENT DESIGN
one minute on and four minutes off, heater
180 V
CHARACTERISTICS RANGE VALUES FOR EQUIPMENT DESIGN

Characteristic

Plate resistance
3900 ohm
Promoted published value
Transconductance
4600 uS
Promoted published value
Amplification factor
18
Promoted published value
Plate Current (1)
16 mA
CHARACTERISTICS RANGE VALUES FOR EQUIPMENT DESIGN
Plate Current (2)
1 mA
CHARACTERISTICS RANGE VALUES FOR EQUIPMENT DESIGN
Transconductance
6000 uS
CHARACTERISTICS RANGE VALUES FOR EQUIPMENT DESIGN
Note
-5 V
CHARACTERISTICS RANGE VALUES FOR EQUIPMENT DESIGN
Note
-15 V
CHARACTERISTICS RANGE VALUES FOR EQUIPMENT DESIGN
x ote n: With plate volts =
-15 V
CHARACTERISTICS RANGE VALUES FOR EQUIPMENT DESIGN
Note
200 V
CHARACTERISTICS RANGE VALUES FOR EQUIPMENT DESIGN
current of
1 A
CHARACTERISTICS RANGE VALUES FOR EQUIPMENT DESIGN
Note
300 V
CHARACTERISTICS RANGE VALUES FOR EQUIPMENT DESIGN