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Rectifier - Damper Diode ·Rectifier

6CM3

Indirectly heated high-current rectifier for demanding television service. Its high inverse-voltage and current capability suit specialized TV power and deflection-related circuits.

Directly heatedCold cathodeCommon cathodeDissimilar
Sections
1
Base
9HP
Socket code
B9A
Base pins
9
Nominal heater
6.3 V / 2.4 A

Description

Miniature type used as combined vhf oscillator and mixer in color and black-and-white television receivers.

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

9HP - Terminal pinout

Electrical assignments shared by every tube using this base designation.

TerminalSectionConnectionEvidence
PIN1Base Pin—IC

Original chart label IC; manufacturer verification pending

Unverified

EIA Base Connections printed p133, 9HP

PIN2Base Pin—P — Plate (Anode)

Original chart label P; manufacturer verification pending

Unverified

EIA Base Connections printed p133, 9HP

PIN3Base Pin—IC

Original chart label IC; manufacturer verification pending

Unverified

EIA Base Connections printed p133, 9HP

PIN4Base Pin—H — Heater

Original chart label H; manufacturer verification pending

Unverified

EIA Base Connections printed p133, 9HP

PIN5Base Pin—H — Heater

Original chart label H; manufacturer verification pending

Unverified

EIA Base Connections printed p133, 9HP

PIN6Base Pin—IC

Original chart label IC; manufacturer verification pending

Unverified

EIA Base Connections printed p133, 9HP

PIN7Base Pin—P — Plate (Anode)

Original chart label P; manufacturer verification pending

Unverified

EIA Base Connections printed p133, 9HP

PIN8Base Pin—IC

Original chart label IC; manufacturer verification pending

Unverified

EIA Base Connections printed p133, 9HP

PIN9Base Pin—K — Cathode

Original chart label K; manufacturer verification pending

Unverified

EIA Base Connections printed p133, 9HP

Section ratings

1 physical section, each with unique specifications.

Section 1

Rectifier

X-ray radiationInterelectrode capacitances
Rectifier peak inverse voltage
5500 V
Rectifier nominal output current
400 mA
Rectifier peak forward current
1.7 A
Rectifier forward voltage drop
10 V
Rectifier max heater-cathode voltage
5500 V

Half-wave damper rectifier for color television.

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

Rectifier

Capacitance

  • Plate to cathode and heater cp(k+h)

    20 pF

  • Heater to cathode ch_k

    4 pF

  • ( ib) =

    350 mA

Other

  • Peak ibm

    1700 mA

  • Average Ib~a~)

    400 mA

Characteristics

  • Instantaneous Tube Voltage Drop

    10 V

    At 350 mA instantaneous plate current

Data set 02

1975 RCA RC30

Published operating points and test conditions from this source.

SECTION 1

Rectifier

Capacitance

  • Grid to Plate

    1.8 pF

    Published datasheet value

  • Plate to Cathode, Heater, Grid No

    2

    Published datasheet value

  • Tetrode Plate to Triode Plate

    0.03 pF

    Published datasheet value

  • Heater to Cathode (Each Unit)

    3 pF

    Published datasheet value

  • Plate to Cathode and Heater

    20 pF

    Published datasheet value

  • Heater to Cat' de

    4 PF

    Published datasheet value

  • Grid to Plate

    3 pF

    Published datasheet value

Characteristic

  • Plate Supply Voltage

    125 volts

    Published datasheet value

  • Grid-No

    125 volts

    Published datasheet value

  • Grid-No

    -1 volt

    Published datasheet value

  • Amplification Factor

    40

    Published datasheet value

  • Plate Resistance (Approx.)

    0.2 megohm

    Published datasheet value

  • Transconductance

    6500

    Published datasheet value

  • Plate Current

    12 mA

    Published datasheet value

  • Grid-No

    4 mA

    Published datasheet value

  • Peak Inverse Plate Voltage*

    5500 volts

    Published datasheet value

  • Peak Plate Current

    1700 mA

    Published datasheet value

  • Average Plate Current

    400 mA

    Published datasheet value

  • Plate Dissipation

    12 watts

    Published datasheet value

  • Tube Voltage Drop for plate current of

    10 mA

    Published datasheet value

  • Plate Voltage

    250 volts

    Published datasheet value

  • Grid Voltage

    -8 volts

    Published datasheet value

  • Transconductance

    4400

    Published datasheet value

  • Plate Current

    20 mA

    Published datasheet value

  • Grid Voltage (Approx.) for plate current of

    -14 volts

    Published datasheet value

  • DC Plate Voltage

    550 volts

    Published datasheet value

  • Peak Negative-Pulse Grid Voltage

    220 volts

    Published datasheet value

  • Peak Cathode Current

    77 mA

    Published datasheet value

  • Average Cathode Current

    22 mA

    Published datasheet value

  • Plate Dissipation

    6 watts

    Published datasheet value