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Rectifier - Damper Diode ·Rectifier

6CL3

Half-wave vacuum rectifier designed as a damper tube in television horizontal-deflection circuits.

Directly heatedCold cathodeCommon cathodeDissimilar
Sections
1
Base
9HP
Socket code
B9A
Base pins
9
Nominal heater
6.3 V / 1.2 A

Description

Half-wave vacuum rectifier used as a damper tube in television horizontal-deflection circuits.

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
1.2 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
Max plate dissipation
8.5 W
Rectifier peak inverse voltage
5500 V
Rectifier nominal output current
250 mA
Rectifier peak forward current
1.3 A
Rectifier forward voltage drop
16 V
Rectifier max heater-cathode voltage
5500 V
Rectifier warm-up time
11 s

Half-wave damper rectifier for black-and-white 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 cpSSk+h)

    6.5 pF

  • Cathode to plate and heater

    9 pF

  • Heater to cathode ch_k

    3 pF

  • For instantaneous plate current ( ib)

    350 mA

Other

  • Peak i bm

    1300 mA

  • Averageb Iblav)

    250 mA

Characteristics

  • Instantaneous Tube Voltage Drop

    16 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

Characteristic

  • Tube Voltage Drop for plate current of

    700 mA

    Published in approved 12CL3 target entry; Section1

  • Tube Voltage Drop for plate current of 700 mA

    25 V

    Published in approved 12CL3 target entry; Section1

  • # Pulse duration must not exceed 15% of a horizontal scanning cycle (

    10 microseconds

    Published in approved 12CL3 target entry; Section1

Other

  • Heater Voltage (ac/dc) 6.3

    12.6 V

    Published in approved 12CL3 target entry; Section1

  • Heater Current 1.2

    600 mA

    Published in approved 12CL3 target entry; Section1

  • Heater Warm-up Time (Average)

    11 seconds

    Published in approved 12CL3 target entry; Section1

  • Peak Inverse Plate Voltage#

    5500 V

    Published in approved 12CL3 target entry; Section1

  • Peak Plate Current

    1300 mA

    Published in approved 12CL3 target entry; Section1

  • Average Plate Current

    250 mA

    Published in approved 12CL3 target entry; Section1

  • Plate Dissipation

    8.5 W

    Published in approved 12CL3 target entry; Section1

  • Bulb Temperature (At hottest point)

    220 °C

    Published in approved 12CL3 target entry; Section1

  • Peak value +300

    -5000 V

    Published in approved 12CL3 target entry; Section1

  • Average value -j-100

    -900 V

    Published in approved 12CL3 target entry; Section1

  • Tube Voltage Drop for plate current of

    350 mA

    Published in approved 12CL3 target entry; Section1

  • Tube Voltage Drop for plate current of 350 mA

    16 V

    Published in approved 12CL3 target entry; Section1

  • # Pulse duration must not exceed 15% of a horizontal scanning cycle (

    10 microseconds

    Published in approved 12CL3 target entry; Section1

  • Heater Voltage (ac/dc)

    6.3 V

    Published in approved 12CL3 target entry; Section1

  • Heater Current

    650 mA

    Published in approved 12CL3 target entry; Section1

Capacitance

  • Plate to Cathode and Heater

    6.5 pF

    Published in approved 12CL3 target entry; Section1

  • Cathode to Plate and Heater

    9 pF

    Published in approved 12CL3 target entry; Section1

  • Heater to Cathode

    3 pF

    Published in approved 12CL3 target entry; Section1

  • Grid No.l to Plate

    0.12 pF

    Published in approved 12CL3 target entry; Section1

  • and Internal Shield

    11 pF

    Published in approved 12CL3 target entry; Section1

  • and Internal Shield

    5.5 pF

    Published in approved 12CL3 target entry; Section1