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Diode (NOT rectifier) ·Diode-Diode

6H6

Twin diode with separate cathodes designed for detector, automatic-volume-control rectifier, and low-drain power-rectifier applications.

Directly heatedCold cathodeCommon cathodeDissimilar
Sections
2
Base
7O
Socket code
IO
Base pins
8
Nominal heater
6.3 V / 300 mA

Description

The 6H6 contains two separate diode rectifier sections and was designed for detector, automatic-volume-control rectifier, and low-drain power-rectifier applications.

Socket description

International Octal

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base
7O
Socket code
IO
Base pins
8
Nominal heater voltage
6.3 V
Nominal heater current
300 mA
Parallel heater voltage
-
Parallel heater current
-
Series capable
No

7O - 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

Diode

X-ray radiationInterelectrode capacitances
Max plate voltage
420 V
Max cathode current
8 mA
Rectifier peak inverse voltage
420 V
Rectifier nominal output current
8 mA
Rectifier peak forward current
48 mA
Rectifier forward voltage drop
11 V
Rectifier max heater-cathode voltage
330 V

Each identical diode; rectifier/detector service.

Section 2

Diode

X-ray radiationInterelectrode capacitances

No fixed ratings are recorded for this section.

Physical second diode section added during approved section-structure reconciliation.

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

1935 RCA All Metal Radio Tubes

Published operating points and test conditions from this source.

SECTION 1

Diode

Other

  • AC plate voltage per plate RMS

    100 V

  • DC output current

    2 mA

  • Plate-to-plate capacitance

    0.02 pF

Data set 02

1937 Raytheon Radio Receiving Tubes

Published operating points and test conditions from this source.

SECTION 1

Diode

Characteristic

  • Heater voltage

    6.3 V

    Published heater rating

  • Heater current

    300 mA

    Published heater rating

Other

  • Maximum AC voltage per plate

    100 V

    DetectorDiodeService

  • Maximum DC output current

    4 mA

    DetectorDiodeService

Data set 03

1940 RCA

Published operating points and test conditions from this source.

SECTION 1

Diode

Characteristics

  • Heater voltage

    6.3 V

    Published nominal value

  • Heater current

    300 mA

    Published nominal value

Other

  • AC plate voltage per plate

    100 V

    RMS

  • DC output current

    4 mA

    Published

Data set 04

1953 RFT Rundfunk Technik

Published operating points and test conditions from this source.

SECTION 1

Diode

Other

  • HeaterVoltageNominal

    6.3 V

    Nominal

  • HeaterCurrentNominal

    300 mA

    Nominal

  • Maximum Plate Voltage

    420 V

Data set 05

195X General Electric Essential Characteristics

Published operating points and test conditions from this source.

SECTION 1

Diode

Characteristic

  • Heater voltage

    6.3 V

    Published heater rating

  • Heater current

    300 mA

    Published heater rating

  • Tube voltage drop

    11 V

    At 16 mA DC

Other

  • DC output current per plate

    8 mA

    HalfWave

  • Peak inverse voltage

    420 V

    HalfWave

  • RMS supply voltage per plate

    150 V

    HalfWave

  • Peak current per plate

    48 mA

    HalfWave

Data set 06

1966 Tung Sol Electronic Tubes 2 of 4

Published operating points and test conditions from this source.

SECTION 1

Diode

Capacitance

  • Plate-to-cathode capacitance

    3 pF

  • Plate-to-plate capacitance

    0.1 pF

Other

  • Maximum AC plate voltage RMS

    150 V

    EachDiode

Characteristics

  • Tube voltage drop

    11 V

    At15mADCPerPlate

Data set 07

1968 General Electric Co

Published operating points and test conditions from this source.

SECTION 1

Diode

Other

  • AC Plate Voltage Per Plate RMS

    165 V

    RectifierService

Data set 08

1971 RCA HB3 Binder 5 of 7

Published operating points and test conditions from this source.

SECTION 1

Diode

Other

  • Peak inverse voltage

    420 V

  • DC output current per plate

    8 mA

    HalfWave

  • Peak plate current per plate

    48 mA

  • Plate #1 to Plate #2 — published value 1

    1 mA

    Published datasheet value; multiple values on one source row represent separate limits or operating conditions.

  • Plate #1 to Plate #2 — published value 2

    2 mA

    Published datasheet value; multiple values on one source row represent separate limits or operating conditions.

  • Plate #1 to Plate #2 — published value 3

    0.1 mA

    Published datasheet value; multiple values on one source row represent separate limits or operating conditions.

  • Plate #1 to Plate #2 — published value 4

    0.1 mA

    Published datasheet value; multiple values on one source row represent separate limits or operating conditions.

  • Peak Inverse Voltage

    420 V

    Published datasheet value; multiple values on one source row represent separate limits or operating conditions.

  • Peak Plate Current per Plate

    48 mA

    Published datasheet value; multiple values on one source row represent separate limits or operating conditions.

  • D-C Heater-Cathode Potential

    330 V

    Published datasheet value; multiple values on one source row represent separate limits or operating conditions.

  • Plate (RMS) — published value 1

    117 V

    Published datasheet value; multiple values on one source row represent separate limits or operating conditions.

  • Plate (RMS) — published value 2

    150 V

    Published datasheet value; multiple values on one source row represent separate limits or operating conditions.

  • D-C Output Current per Plate

    8 mA

    Published datasheet value; multiple values on one source row represent separate limits or operating conditions.

  • D-C Output Current — published value 1

    8 mA

    Published datasheet value; multiple values on one source row represent separate limits or operating conditions.

  • D-C Output Current — published value 2

    8 mA

    Published datasheet value; multiple values on one source row represent separate limits or operating conditions.

Characteristics

  • Voltage

    6.3 V

    Published datasheet value; multiple values on one source row represent separate limits or operating conditions.

  • Current

    300 mA

    Published datasheet value; multiple values on one source row represent separate limits or operating conditions.

  • Plate #1 to Cathode #1 — published value 1

    1 pF

    Published datasheet value; multiple values on one source row represent separate limits or operating conditions.

  • Plate #1 to Cathode #1 — published value 2

    1 pF

    Published datasheet value; multiple values on one source row represent separate limits or operating conditions.

  • Plate #1 to Cathode #1 — published value 3

    3 pF

    Published datasheet value; multiple values on one source row represent separate limits or operating conditions.

  • Plate #1 to Cathode #1 — published value 4

    3 pF

    Published datasheet value; multiple values on one source row represent separate limits or operating conditions.

  • Plate #2 to Cathode #2 — published value 1

    2

    Published datasheet value; multiple values on one source row represent separate limits or operating conditions.

  • Plate #2 to Cathode #2 — published value 2

    2

    Published datasheet value; multiple values on one source row represent separate limits or operating conditions.

  • Plate #2 to Cathode #2 — published value 3

    3.4

    Published datasheet value; multiple values on one source row represent separate limits or operating conditions.

  • Plate #2 to Cathode #2 — published value 4

    4

    Published datasheet value; multiple values on one source row represent separate limits or operating conditions.

  • ((6H6, Shell — published value 1

    6

    Published datasheet value; multiple values on one source row represent separate limits or operating conditions.

  • ((6H6, Shell — published value 2

    4

    Published datasheet value; multiple values on one source row represent separate limits or operating conditions.

  • ((6H6, Shell — published value 3

    2

    Published datasheet value; multiple values on one source row represent separate limits or operating conditions.

  • Pin 1 i6H6~T/G, Internal 4 © — published value 1

    1

    Published datasheet value; multiple values on one source row represent separate limits or operating conditions.

  • Pin 1 i6H6~T/G, Internal 4 © — published value 2

    4

    Published datasheet value; multiple values on one source row represent separate limits or operating conditions.

  • Pin 1 i6H6~T/G, Internal 4 © — published value 3

    5

    Published datasheet value; multiple values on one source row represent separate limits or operating conditions.

  • Pin 1 i6H6~T/G, Internal 4 © — published value 4

    1

    Published datasheet value; multiple values on one source row represent separate limits or operating conditions.

  • ll shield

    7

    Published datasheet value; multiple values on one source row represent separate limits or operating conditions.

  • Pin 2 -Heater — published value 1

    2

    Published datasheet value; multiple values on one source row represent separate limits or operating conditions.

  • Pin 2 -Heater — published value 2

    8

    Published datasheet value; multiple values on one source row represent separate limits or operating conditions.

  • Pin 2 -Heater — published value 3

    1

    Published datasheet value; multiple values on one source row represent separate limits or operating conditions.

  • Pin 3 -Plate #2 — published value 1

    3

    Published datasheet value; multiple values on one source row represent separate limits or operating conditions.

  • Pin 3 -Plate #2 — published value 2

    2

    Published datasheet value; multiple values on one source row represent separate limits or operating conditions.

  • Impedance per Plate • — published value 1

    15 ohm

    Published datasheet value; multiple values on one source row represent separate limits or operating conditions.

  • Impedance per Plate • — published value 2

    40 ohm

    Published datasheet value; multiple values on one source row represent separate limits or operating conditions.

  • Plate (RMS) — published value 1

    117 V

    Published datasheet value; multiple values on one source row represent separate limits or operating conditions.

  • Plate (RMS) — published value 2

    117 V

    Published datasheet value; multiple values on one source row represent separate limits or operating conditions.

  • Impedance per Plate — published value 1

    30 ohm

    Published datasheet value; multiple values on one source row represent separate limits or operating conditions.

  • Impedance per Plate — published value 2

    15 ohm

    Published datasheet value; multiple values on one source row represent separate limits or operating conditions.