6900

Rugged medium-mu twin triode specifically designed for high-current pulse service in missiles, aircraft, military, and industrial equipment, with exceptional shock capability and multiampere peak cathode-current ratings.

Directly heatedCold cathodeCommon cathodeDissimilar

Sections: 2
Base: -
Socket code: B9A
Base pins: 9
Nominal heater: 6.3 V / 1 A

Description

Rugged medium-mu twin triode designed specifically for high-current pulse applications in missiles, aircraft, military, and industrial equipment. Electrical ratings, characteristics, operating data, and special environmental information were extracted from the supplied source.

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: -
Socket code: B9A
Base pins: 9
Nominal heater voltage: 6.3 V
Nominal heater current: 1 A
Parallel heater voltage: -
Parallel heater current: -
Series capable: No

Terminal pinout

Electrical assignments shared by every tube using this base designation.

No verified pinout is recorded for this base designation.

Section ratings

2 physical sections, each with unique specifications.

Section 1

Triode

X-ray radiationInterelectrode capacitances

Transconductance: 0.0115 S
Amplification factor: 18.5
Max plate voltage: 600 V
Max plate dissipation: 4.25 W
Max cathode current: 4.5 A

Published ratings and characteristics promoted from the approved datasheet.

Section 2

Triode

X-ray radiationInterelectrode capacitances

Transconductance: 0.0115 S
Amplification factor: 18.5
Max plate voltage: 600 V
Max plate dissipation: 4.25 W
Max cathode current: 4.5 A

Second physical triode section; electrically identical twin section.

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

1961 Tung Sol

Published operating points and test conditions from this source.

SECTION 1

Triode

Other

Heater voltage
6.3 V
Nominal
Heater current
1 A
Nominal
Plate voltage
600 V
Published operating table; OperatingPoint1
Plate voltage
120 V
Published operating table; OperatingPoint1
Plate voltage
500 V
Published operating table; OperatingPoint1
Peak cathode current
4.5 A
Pulse
Pulse time
10 us
Pulse; BothSectionsParallel
Pulse repetition rate
250 pps
Pulse; BothSectionsParallel

Characteristic

Plate current
36 mA
Published operating table; OperatingPoint1
Transconductance
11500 uS
Published operating table; OperatingPoint1

Data set 02

1966 Tung Sol Electronic Tubes 4 of 4

Published operating points and test conditions from this source.

SECTION 1

Triode

Characteristics

LIMITS OF APPLIED VOLTAGE — published value 1
6.3 V
Published datasheet table value; multiple values on a source row represent separate limits or operating conditions.
LIMITS OF APPLIED VOLTAGE — published value 2
0.3 V
Published datasheet table value; multiple values on a source row represent separate limits or operating conditions.
PLATE VOLTAGE
600 V
Published datasheet table value; multiple values on a source row represent separate limits or operating conditions.
PEAK CATHODE CURRENT ®SEE CHART
4.5 A
Published datasheet table value; multiple values on a source row represent separate limits or operating conditions.
PLATE DISSIPATION PER PLATE
4.25 W
Published datasheet table value; multiple values on a source row represent separate limits or operating conditions.
GRID CIRCUIT RESISTANCE
1 Mohm
Published datasheet table value; multiple values on a source row represent separate limits or operating conditions.
AVERAGE WARM-UP TIME
45 s
Published datasheet table value; multiple values on a source row represent separate limits or operating conditions.
PLATE VOLTAGE
120 V
Published datasheet table value; multiple values on a source row represent separate limits or operating conditions.
GRID VOLTAGE
2 V
Published datasheet table value; multiple values on a source row represent separate limits or operating conditions.
TRANSCONDUCTANCE
11500
Published datasheet table value; multiple values on a source row represent separate limits or operating conditions.
AMPLIFICATION FACTOR
18.5
Published datasheet table value; multiple values on a source row represent separate limits or operating conditions.
PLATE VOLTAGE
500 V
Published datasheet table value; multiple values on a source row represent separate limits or operating conditions.
GRID PULSE ('egk)
50 V
Published datasheet table value; multiple values on a source row represent separate limits or operating conditions.
GRID VOLTAGE
-100 V
Published datasheet table value; multiple values on a source row represent separate limits or operating conditions.
PLATE BIAS VOLTAGE
4.25 A
Published datasheet table value; multiple values on a source row represent separate limits or operating conditions.
GRID CURRENT
500 mA
Published datasheet table value; multiple values on a source row represent separate limits or operating conditions.
PULSE TIME
10
Published datasheet table value; multiple values on a source row represent separate limits or operating conditions.
PULSE REPETITION RATE
250
Published datasheet table value; multiple values on a source row represent separate limits or operating conditions.
ALTITUDE ®SEE APPLICATION NOTE
80000
Published datasheet table value; multiple values on a source row represent separate limits or operating conditions.
IMPACT SHOCK
500
Published datasheet table value; multiple values on a source row represent separate limits or operating conditions.
Transconductance
0.0115 A/V
Promoted section value from the supplied datasheet.
Amplification factor
18.5
Promoted section value from the supplied datasheet.

Other

Maximum plate voltage
600 V
Promoted section value from the supplied datasheet.
Maximum plate dissipation
4.25 W
Promoted section value from the supplied datasheet.
Maximum cathode current
4.5 A
Promoted section value from the supplied datasheet.