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Voltage - Triple Triode ·Triode-Triode-Triode

6U10

Multi-unit triode with medium-mu and high-mu sections for general amplifier applications.

Directly heatedCold cathodeCommon cathodeDissimilar
Sections
3
Base
EIA 12FE
Socket code
B12C
Base pins
12
Nominal heater
6.3 V / 600 mA

Description

6U10 is a TripleTriode vacuum tube documented in the RCA Receiving Tube Manual. The supplied excerpt was reviewed for heater data, section arrangement, maximum ratings, electrical characteristics, interelectrode capacitances, typical operating conditions, and stated applications.

Socket description

Duodecar 12-contact

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base
EIA 12FE
Socket code
B12C
Base pins
12
Nominal heater voltage
6.3 V
Nominal heater current
600 mA
Parallel heater voltage
6.3 V
Parallel heater current
600 mA
Series capable
Yes

EIA 12FE - Terminal pinout

Electrical assignments shared by every tube using this base designation.

No verified pinout is recorded for this base designation.

Section ratings

3 physical sections, each with unique specifications.

Section 1

Triode

X-ray radiationInterelectrode capacitances
Plate resistance
7700 Ω
Transconductance
0.0023 S
Amplification factor
17.5
Max plate voltage
330 V
Max plate dissipation
2 W
Max cathode current
20 mA

Representative row for identical physical Sections 1 and 3.

Section 2

Triode

X-ray radiationInterelectrode capacitances
Plate resistance
61000 Ω
Transconductance
0.0016 S
Amplification factor
98
Max plate voltage
330 V
Max plate dissipation
1 W

High-mu physical Section 2.

Section 3

Triode

X-ray radiationInterelectrode capacitances
Plate resistance
7700 Ω
Transconductance
0.0023 S
Amplification factor
17.5
Max plate voltage
330 V
Max plate dissipation
2 W
Max cathode current
20 mA

Third physical triode section, matching the second low-mu unit; added to align rows with SectionCount.

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

1940 RCA

Published operating points and test conditions from this source.

SECTION 1

Triode

Other

  • Cathode Current ...........¢ocviiiineninnnoeannnna 18

    18 mA

    Cathode Current ...........¢ocviiiineninnnoeannnna 18 18 mA

  • Plate Dissipation .............ciiviierierunranenenas 1.5

    21 W

    Plate Dissipation .............ciiviierierunranenenas 1.5 21 watts

  • Grid-No.2 Input .. ........coiiiiiiiniirnincrnnns —_

    0.7 W

    Grid-No.2 Input .. ........coiiiiiiiniirnincrnnns —_ 0.7 watt

  • Plate Voltage . ... .... ...t interernnssnananas 100

    160 V

    Plate Voltage . ... .... ...t interernnssnananas 100 160 volts

  • Grid-No.3 (Suppressor-Grid) Voltage ............. . —_

    0 V

    Grid-No.3 (Suppressor-Grid) Voltage ............. . —_ 0 volts

  • Grid-No.2 Voltage .......... ...t iiiinerenannns —

    110 V

    Grid-No.2 Voltage .......... ...t iiiinerenannns — 110 volts

  • Grid-No.1 (Control-Grid) Voltage .............. —2 —

    1.4 V

    Grid-No.1 (Control-Grid) Voltage .............. —2 —1.4 volts

  • TransconductB8NCE . .........v'rtntunnneenneennnnnen 5000

    12000

    TransconductB8NCE . .........v'rtntunnneenneennnnnen 5000 12000 Aamhos

  • Plate Current .. ..........cce''eerreenenennsnononnns 14

    13 mA

    Plate Current .. ..........cce''eerreenenennsnononnns 14 13 mA

  • Grid-No.2 Current ...........c.oeeevenvnnerennnnns — b mA

    2 mA

    Grid-No.2 Current ...........c.oeeevenvnnerennnnns — b mA

  • * With a maximum duty cycle of 0.10 and maximum pulse duration of

    10 s

    * With a maximum duty cycle of 0.10 and maximum pulse duration of 10 microseconds.

  • requires duodecar 12-contact socket. Heater: volts

    12 V

    requires duodecar 12-contact socket. Heater: volts

  • (ac/dc), 6.3; amperes, 0.6; warm-up time (average),

    600 mA

    (ac/dc), 6.3; amperes, 0.6; warm-up time (average),

  • 11 seconds); maximum heater-cathode volts,

    275 V

    11 seconds); maximum heater-cathode volts, +275

  • Plate Voltage . ...... ... ... . . iiiiiitiiniiiiennnnns 330

    330 V

    Plate Voltage . ...... ... ... . . iiiiiitiiniiiiennnnns 330 330 volts

  • Positive-bias value ............................ 0

    0 V

    Positive-bias value ............................ 0 0 volts

  • Negative-bias value ............................ 50

    50 V

    Negative-bias value ............................ 50 50 volts

  • Average Cathode Current . ... .. .................... 20 — mA

    20 mA

    Average Cathode Current . ... .. .................... 20 — mA

  • Plate Dissipation . ............... ..ot iainnn 2

    1 W

    Plate Dissipation . ............... ..ot iainnn 2 1 watts

  • Plate Voltage . ....... ...t it innnnias 200

    200 V

    Plate Voltage . ....... ...t it innnnias 200 200 volts

  • Grid Voltage ... ... .. .. i ttiiraniiarnan —6 —

    1.5 V

    Grid Voltage ... ... .. .. i ttiiraniiarnan —6 —1.5 volts

  • Amplification Factor ...........ciiiiirennerrnnnnas

    90

    Amplification Factor ...........ciiiiirennerrnnnnas 17.6 90

  • TransconductBnee ...........c.c0iiiterernsscnsananas 2300

    1600

    TransconductBnee ...........c.c0iiiterernsscnsananas 2300 1600 pgmhos

  • Plate Current ................ ¢ ciiiieiiiinnnnnn 9.6

    1.2 mA

    Plate Current ................ ¢ ciiiieiiiinnnnnn 9.6 1.2 mA

  • For plate current of 100 & .................. —15 —_ volts

    15 V

    For plate current of 100 & .................. —15 —_ volts

  • For plate current of 36 A . ................... — —

    3 V

    For plate current of 36 A . ................... — —3 volts

  • For fixed-bias operation ....................... 1

    0.5 ohm

    For fixed-bias operation ....................... 1 0.5 megohm

  • For cathode-bias operation .................... 2.2 1* megohms

    1 ohm

    For cathode-bias operation .................... 2.2 1* megohms

  • are such that the plate dissipation can never exceed

    0.5 W

    are such that the plate dissipation can never exceed 0.5 watt.

  • ventilated. Heater: volts (ac/de), 6.3; amperes,

    1.75 V

    ventilated. Heater: volts (ac/de), 6.3; amperes, 1.75.

Characteristic

  • Grid-No.1-Circuit Resistance ...............cccvuvun. 1

    1 ohm

    Grid-No.1-Circuit Resistance ...............cccvuvun. 1 1 megohm

  • Plate Resistance (Approx.) ................ e 7700

    61000 ohm

    Plate Resistance (Approx.) ................ e 7700 61000 ohms

  • * This value may reach 10 megohms provided the plate-supply voltage and load resistance

    10 V

    * This value may reach 10 megohms provided the plate-supply voltage and load resistance

Data set 02

1968 General Electric Co

Published operating points and test conditions from this source.

SECTION 1

Triode

Capacitance

  • Grid-to-Plate Capacitance

    1.3 pF

    Section1

  • Input Capacitance

    1.7 pF

    Section1

  • Output Capacitance

    0.26 pF

    Section1

  • Grid-to-Plate Capacitance

    1.2 pF

    Section3

  • Input Capacitance

    1.8 pF

    Section3

  • Output Capacitance

    0.9 pF

    Section3

Other

  • Plate Voltage

    200 V

    AverageCharacteristics

  • Grid Voltage

    -6 V

    AverageCharacteristics

Characteristic

  • Plate Current

    9.6 mA

    AverageCharacteristics

SECTION 2

Triode

Capacitance

  • Grid-to-Plate Capacitance

    1.3 pF

    Section2

  • Input Capacitance

    1.5 pF

    Section2

  • Output Capacitance

    0.28 pF

    Section2

Other

  • Plate Voltage

    200 V

    AverageCharacteristics

  • Grid Voltage

    -1.5 V

    AverageCharacteristics

Characteristic

  • Plate Current

    1.2 mA

    AverageCharacteristics