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Power - Beam Single (NOT sweep) (under 10W) ·BeamPower

6CA5

Miniature beam-power tube designed for audio-frequency power-output stages of radio and television receivers.

Directly heatedCold cathodeCommon cathodeDissimilar
Sections
1
Base
7CV
Socket code
B7G
Base pins
7
Nominal heater
6.3 V / 1.2 A

Description

Miniature beam-power tube used in audio-frequency power-output stages of radio and television receivers.

Socket description

Miniature 7-contact

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base
7CV
Socket code
B7G
Base pins
7
Nominal heater voltage
6.3 V
Nominal heater current
1.2 A
Parallel heater voltage
-
Parallel heater current
-
Series capable
No

7CV - Terminal pinout

Electrical assignments shared by every tube using this base designation.

TerminalSectionConnectionEvidence
PIN1G3AG3 — Suppressor GridGroup 7CV1

EIA chart transcription; independent manufacturer verification pending

Unverified

EIA Base Connections, printed page 128, 7CV

PIN1KAK — CathodeGroup 7CV1

EIA chart transcription; independent manufacturer verification pending

Unverified

EIA Base Connections, printed page 128, 7CV

PIN2G1AG1 — Control Grid

EIA chart transcription; independent manufacturer verification pending

Unverified

EIA Base Connections, printed page 128, 7CV

PIN3H—H — Heater

EIA chart transcription; independent manufacturer verification pending

Unverified

EIA Base Connections, printed page 128, 7CV

PIN4H—H — Heater

EIA chart transcription; independent manufacturer verification pending

Unverified

EIA Base Connections, printed page 128, 7CV

PIN5G1AG1 — Control Grid

EIA chart transcription; independent manufacturer verification pending

Unverified

EIA Base Connections, printed page 128, 7CV

PIN6G2AG2 — Screen Grid

EIA chart transcription; independent manufacturer verification pending

Unverified

EIA Base Connections, printed page 128, 7CV

PIN7PAP — Plate (Anode)

EIA chart transcription; independent manufacturer verification pending

Unverified

EIA Base Connections, printed page 128, 7CV

Section ratings

1 physical section, each with unique specifications.

Section 1

Beam Power

X-ray radiationInterelectrode capacitances
Plate resistance
15000 Ω
Transconductance
0.0092 S
Max plate voltage
130 V
Max screen voltage
130 V
Max plate dissipation
5 W
Max screen dissipation
1.4 W

Audio output

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

1971 RCA HB3 Binder 4 of 7

Published operating points and test conditions from this source.

SECTION 1

Beam Power

Capacitance

  • Grid No.l to plate

    5 pF

Other

  • PLATE VOLTAGE

    130 V

  • Positive-bias value

    0 V

  • PLATE DISSIPATION

    5 W

  • Heater negative with respect to cathode

    200 V

  • Heater positive with respect to cathode

    2006 V

  • 125 volts

    125 V

  • Grid-No.l Voltage

    -4 V

    Published table column 1 of 2

  • Grid-No.l Voltage

    -4.5 V

    Published table column 2 of 2

  • Peak AF Grid-No.l Voltage

    4 V

    Published table column 1 of 2

  • Peak AF Grid-No.l Voltage

    4.5 V

    Published table column 2 of 2

  • Zero-Signal Plate Current

    32 mA

    Published table column 1 of 2

  • Zero-Signal Plate Current

    37 mA

    Published table column 2 of 2

  • Max.-Signal Plate Current

    31 mA

    Published table column 1 of 2

  • Max.-Signal Plate Current

    36 mA

    Published table column 2 of 2

  • Plate Resistance (Approx )

    16000 Ω

    Published table column 1 of 2

  • Plate Resistance (Approx )

    15000 Ω

    Published table column 2 of 2

  • Load Resistance

    3500 Ω

    Published table column 1 of 2

  • Load Resistance

    4500 Ω

    Published table column 2 of 2

  • Max.-Signal Power Output

    1.1 W

    Published table column 1 of 2

  • Max.-Signal Power Output

    1.5 W

    Published table column 2 of 2

  • For fixed-bias operation

    0 MΩ

    Published table column 1 of 2

  • For fixed-bias operation

    1 MΩ

    Published table column 2 of 2

  • For cathode-bias operation

    0 MΩ

    Published table column 1 of 2

  • For cathode-bias operation

    5 MΩ

    Published table column 2 of 2

  • b The do component must not exceed

    100 V

Data set 02

1975 RCA RC30

Published operating points and test conditions from this source.

SECTION 1

Beam Power

Other

  • per Plate 150 200

    240 Ω

    Published in approved 12CA5 target entry; Section1

  • For dc output current of

    150 mA

    Published in approved 12CA5 target entry; Section1

  • For dc output current of 150 mA 245 293

    347 V

    Published in approved 12CA5 target entry; Section1

  • Heater Voltage (ac/dc) 6.3

    126 V

    Published in approved 12CA5 target entry; Section1

  • Heater Current 1.2

    600 mA

    Published in approved 12CA5 target entry; Section1

  • Heater Warm-up Time (Average)

    11 seconds

    Published in approved 12CA5 target entry; Section1

  • Plate Voltage

    130 V

    Published in approved 12CA5 target entry; Section1

  • Grid-No.2 (Screen-Grid) Voltage

    130 V

    Published in approved 12CA5 target entry; Section1

  • Grid-No.l (Control-Grid) Voltage, Positive-bias value

    0 V

    Published in approved 12CA5 target entry; Section1

  • Plate Dissipation

    5 W

    Published in approved 12CA5 target entry; Section1

  • Grid-No. 2 Input

    1.4 W

    Published in approved 12CA5 target entry; Section1

  • Plate Voltage 110

    125 V

    Published in approved 12CA5 target entry; Section1

  • Grid-No.2 Voltage 110

    125 V

    Published in approved 12CA5 target entry; Section1

  • Grid-No.l (Control-Grid) Voltage

    -4.5 V

    Published in approved 12CA5 target entry; Section1

  • Peak AF Grid-No.l Voltage 4

    4.5 V

    Published in approved 12CA5 target entry; Section1

  • Zero-Signal Plate Current 32

    37 mA

    Published in approved 12CA5 target entry; Section1

  • Maximum-Signal Plate Current 31

    36 mA

    Published in approved 12CA5 target entry; Section1

  • Zero-Signal Grid-No.2 Current (Approx.) 3.5

    4 mA

    Published in approved 12CA5 target entry; Section1

  • Maximum-Signal Grid-No.2 Current (Approx.) 7.5

    11 mA

    Published in approved 12CA5 target entry; Section1

  • Plate Resistance (Approx.) 16000

    15000 Ω

    Published in approved 12CA5 target entry; Section1

  • Transconductance 8100

    9200 µS

    Published in approved 12CA5 target entry; Section1

  • Load Resistance 3500

    4500 Ω

    Published in approved 12CA5 target entry; Section1

  • Total Harmonic Distortion 5

    6 %

    Published in approved 12CA5 target entry; Section1

  • Maximum-Signal Power Output 1.1

    1.5 W

    Published in approved 12CA5 target entry; Section1

  • For fixed-bias operation

    0.1 MΩ

    Published in approved 12CA5 target entry; Section1

  • For cathode-bias operation

    0.5 MΩ

    Published in approved 12CA5 target entry; Section1

  • length,

    4 %

    Published in approved 12CA5 target entry; Section1

  • Heater Voltage (ac/dc)

    6.3 V

    Published in approved 12CA5 target entry; Section1

  • Heater Current

    1.5 A

    Published in approved 12CA5 target entry; Section1