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Power - TV Horizontal Output (sweep) ·BeamPower

25AV5GA

Beam-power tube designed for horizontal-deflection amplifier service in television receivers, electrically related to the 6AV5GA apart from heater characteristics.

Directly heatedCold cathodeCommon cathodeDissimilar

Sections: 1
Base: 6CK
Socket code: IO
Base pins: 8
Nominal heater: 25 V / 300 mA

Description

Beam power tube for horizontal-deflection amplifier service in television receivers.

Socket description

International Octal

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base: 6CK
Socket code: IO
Base pins: 8
Nominal heater voltage: 25 V
Nominal heater current: 300 mA
Parallel heater voltage: -
Parallel heater current: -
Series capable: No

6CK - Terminal pinout

Electrical assignments shared by every tube using this base designation.

Terminal	Section	Connection	Evidence
PIN1Pin 1	A	G1 — Control Grid	Verified 6AV5GA manufacturer basing diagram, 6CK bottom view; Tung-Sol/RCA
PIN2Pin 2	—	H — Heater	Verified 6AV5GA manufacturer basing diagram, 6CK bottom view; Tung-Sol/RCA
PIN3Pin 3	A	BP — Beam-Forming PlateGroup CK3	Verified 6AV5GA manufacturer basing diagram, 6CK bottom view; Tung-Sol/RCA
PIN3Pin 3	A	K — CathodeGroup CK3	Verified 6AV5GA manufacturer basing diagram, 6CK bottom view; Tung-Sol/RCA
PIN5Pin 5	A	P — Plate (Anode)	Verified 6AV5GA manufacturer basing diagram, 6CK bottom view; Tung-Sol/RCA
PIN7Pin 7	—	H — Heater	Verified 6AV5GA manufacturer basing diagram, 6CK bottom view; Tung-Sol/RCA
PIN8Pin 8	A	G2 — Screen Grid	Verified 6AV5GA manufacturer basing diagram, 6CK bottom view; Tung-Sol/RCA

Section ratings

1 physical section, each with unique specifications.

Section 1

Beam Power

X-ray radiationInterelectrode capacitances

Plate resistance: 24500 Ω
Transconductance: 0.0058 S
Amplification factor: 4.5
Max plate voltage: 550 V
Max screen voltage: 175 V
Max plate dissipation: 11 W
Max screen dissipation: 2.5 W
Max cathode current: 110 mA

Reference/equivalence-only sparse-source exception: electrical tables and even the specific heater values are not reproduced.

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

Beam Power

Other

MaximumPeakPositivePulsePlateVoltage
5500 V
HorizontalDeflection
MaximumPeakNegativePulsePlateVoltage
1250 V
HorizontalDeflection
Maximum Peak Cathode Current
400 mA
Heater Warmup Time
11 s
Plate Voltage
250 V

Capacitance

Grid1 To Plate Capacitance
0.5 pF
Input Capacitance
14 pF
Output Capacitance
7 pF

Characteristic

TransconductancePublished
5900 uS

Data set 02

1966 Tung Sol Electronic Tubes 3 of 4

Published operating points and test conditions from this source.

SECTION 1

Beam Power

Other

DC plate-supply voltage
550 V
HorizontalDeflection
Peak positive pulse plate voltage
5500 V
HorizontalDeflection
Peak negative pulse plate voltage
-1250 V
HorizontalDeflection
Maximum grid #2 voltage
175 V
HorizontalDeflection
Peak negative grid #1 voltage
-300 V
HorizontalDeflection
Average cathode current
110 mA
HorizontalDeflection
Peak cathode current
400 mA
HorizontalDeflection
Plate voltage
250 V
AverageCharacteristics
Grid #2 voltage
150 V
AverageCharacteristics
Plate current
57 mA
AverageCharacteristics
Grid #2 current
2.1 mA
AverageCharacteristics

Characteristic

Plate resistance
24500 ohm
AverageCharacteristics
Transconductance
5700 uS
AverageCharacteristics
Triode amplification factor
4.3
TriodeConnection

Capacitance

Grid #1-to-plate capacitance
0.5 pF
Input capacitance
16 pF
Output capacitance
7 pF

Data set 03

1971 RCA HB3 Binder 5 of 7

Published operating points and test conditions from this source.

SECTION 1

Beam Power

Characteristics

Heater voltage
25 V
Nominal heater rating from supplied sheet
Heater current
300 mA
Nominal heater rating from supplied sheet
Transconductance
5800 uS
ExactParentElectricalData 6AV5GA

Other

Maximum plate voltage
550 V
ExactParentElectricalData 6AV5GA
Maximum screen-grid voltage
175 V
ExactParentElectricalData 6AV5GA
Maximum plate dissipation
11 W
ExactParentElectricalData 6AV5GA
Maximum screen-grid dissipation
2.5 W
ExactParentElectricalData 6AV5GA
Maximum average cathode current
110 mA
ExactParentElectricalData 6AV5GA

Data set 04

1975 RCA RC30

Published operating points and test conditions from this source.

SECTION 1

Beam Power

Other

Heater Warm-up Time (Average) —
11 s
Other
Peak value max
200 V
Other;PublishedValue1
Peak value max
200 V
Other;PublishedValue2
Average value
100 V
Other;PublishedValue1
Average value
100 V
Other;PublishedValue2
Average value
100 V
Other;PublishedValue3
DC Plate Voltage
550 V
MaximumRating
Peak Positive-Pulse Plate Voltage* (Absolute Maximum)
5500 V
MaximumRating
Peak Negative-Pulse Plate Voltage
1250 V
MaximumRating
DC Grid-No
2 V
MaximumRating;PublishedValue1
DC Grid-No
175 V
MaximumRating;PublishedValue2
Peak Negative-Pulse Grid-No.l Voltage
300 V
MaximumRating
Peak Cathode Current
400 mA
MaximumRating
Average Cathode Current
110 mA
MaximumRating
Grid-No
2 W
MaximumRating;PublishedValue1
Grid-No
2.5 W
MaximumRating;PublishedValue2
Plate Dissipationtt
11 W
MaximumRating
Grid-No. I-Circuit Resistance
0.47 megohm
MaximumCircuitValue
Maximum Plate Voltage
550 V
Section1;Promoted
Maximum Screen Voltage
150 V
Section1;Promoted
Maximum Plate Dissipation
11 W
Section1;Promoted
Maximum Screen Dissipation
2.5 W
Section1;Promoted
Maximum Cathode Current
110 mA
Section1;Promoted

Capacitance

Grid No.l to Plate
0 pF
Capacitance;PublishedValue1
Grid No.l to Plate
5 pF
Capacitance;PublishedValue2
Grid No.l to Cathode, Heater, Grid No
2 pF
Capacitance;PublishedValue1
Grid No.l to Cathode, Heater, Grid No
14 pF
Capacitance;PublishedValue2
Plate to Cathode, Heater, Grid No
2 pF
Capacitance;PublishedValue1
Plate to Cathode, Heater, Grid No
7 pF
Capacitance;PublishedValue2

Characteristic

Plate Voltage
60 V
Characteristic;PublishedValue1
Plate Voltage
250 V
Characteristic;PublishedValue2
Plate Voltage
150 V
Characteristic;PublishedValue3
Grid-No
2 V
Characteristic;PublishedValue1
Grid-No
1 V
Characteristic;PublishedValue2
Grid-No
180 V
Characteristic;PublishedValue3
Grid-No
150 V
Characteristic;PublishedValue4
Grid-No
1 V
Characteristic;PublishedValue1
Grid-No
0 V
Characteristic;PublishedValue2
Grid-No
-22.5 V
Characteristic;PublishedValue3
Grid-No
-22.5 V
Characteristic;PublishedValue4
Plate Resistance —
14500 ohm
Characteristic
Plate Current IM
57 mA
Characteristic
Grid-No.l Voltage (Approx.) for plate current of
26 mA
Characteristic;PublishedValue1
Grid-No.l Voltage (Approx.) for plate current of
2.1 mA
Characteristic;PublishedValue2
Published value
1 mA
Characteristic;PublishedValue1
Published value
-43 mA
Characteristic;PublishedValue2
Plate Resistance
14500 ohm
Section1;Promoted
Transconductance
5900 uS
Section1;Promoted