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Power - TV Vertical Output ·Triode-Triode

10EM7

Dissimilar dual triode combining a high-mu voltage-amplifier section with a low-mu 10 W power section, suited to circuits requiring voltage gain followed by substantial current drive.

Directly heatedCold cathodeCommon cathodeDissimilar
Sections
2
Base
8B0
Socket code
IO
Base pins
8
Nominal heater
9.7 V / 600 mA

Description

DualTriode vacuum tube described in the supplied RCA Receiving Tube Manual entry for 10EM7.

Socket description

International Octal

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base
8B0
Socket code
IO
Base pins
8
Nominal heater voltage
9.7 V
Nominal heater current
600 mA
Parallel heater voltage
-
Parallel heater current
-
Series capable
No

8B0 - 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

Triode

X-ray radiationInterelectrode capacitances
Plate resistance
40000 Ω
Transconductance
0.0015 S
Amplification factor
60
Max plate voltage
330 V
Max plate dissipation
1.5 W
Max cathode current
77 mA

high-mu

Section 2

Triode

X-ray radiationInterelectrode capacitances
Plate resistance
1000 Ω
Transconductance
0.007 S
Amplification factor
6
Max plate voltage
330 V
Max plate dissipation
10 W
Max cathode current
175 mA

low-mu

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 5 of 7

Published operating points and test conditions from this source.

SECTION 1

Triode

Other

  • Maximum Plate Voltage

    330 V

    Inherited from explicitly referenced 6-volt parent type

  • Plate Dissipation

    1.5 W

    Inherited from explicitly referenced 6-volt parent type

Characteristics

  • Transconductance

    1500 µS

    Inherited from explicitly referenced 6-volt parent type

  • Amplification Factor

    60

    Inherited from explicitly referenced 6-volt parent type

SECTION 2

Triode

Other

  • Maximum Plate Voltage

    330 V

    Inherited from explicitly referenced 6-volt parent type

  • Plate Dissipation

    10 W

    Inherited from explicitly referenced 6-volt parent type

Characteristics

  • Transconductance

    7000 µS

    Inherited from explicitly referenced 6-volt parent type

  • Amplification Factor

    6

    Inherited from explicitly referenced 6-volt parent type

Data set 02

1975 RCA RC30

Published operating points and test conditions from this source.

SECTION 1

Triode

Characteristic

  • Heater Voltage (ac/dc)

    13 volts

    Published value from supplied target entry

  • Heater Current

    0.45 ampere

    Published value from supplied target entry

  • Heater Warm-up Time (Average)

    11 seconds

    Published value from supplied target entry

  • Plate Voltage

    150

    Published value from supplied target entry

  • Grid Voltage

    -20 volts

    Published value from supplied target entry

  • Amplification Factor

    5.4

    Published value from supplied target entry

  • Plate Resistance (Approx.)

    750 ohms

    Published value from supplied target entry

  • Transconductance

    7200 mhos

    Published value from supplied target entry

  • Plate Current, for plate voltage of

    60 volts

    Published value from supplied target entry

  • Plate Current, for grid voltage of

    -28 volts

    Published value from supplied target entry

  • For plate current of

    -5.5 volts

    Published value from supplied target entry

  • For plate current of

    -45 Volts

    Published value from supplied target entry

  • DC Plate Voltage

    330 volts

    Published value from supplied target entry

  • Peak Cathode Current

    175 mA

    Published value from supplied target entry

  • Average Cathode Current

    50 mA

    Published value from supplied target entry

  • Plate Dissipation

    10 watts

    Published value from supplied target entry

  • Grid-Circuit Resistance: Unit No.l Unit No

    2

    Published value from supplied target entry

  • # Pulse duration must not exceed

    2.5

    Published value from supplied target entry

  • Heater Voltage (ac/dc)

    6.3 volts

    Published value from supplied target entry

  • Heater Current

    0.2 ampere

    Published value from supplied target entry

Capacitance

  • Direct Intel-electrode Capacitances (Approx.) : Unit No.l Unit No

    2

    Published value from supplied target entry

  • Grid to Plate

    10 pF

    Published value from supplied target entry

  • Grid to Cathode and Heater

    7 pF

    Published value from supplied target entry

  • Plate to Cathode and Heater

    1.8 pF

    Published value from supplied target entry

  • Grid to Plate

    1 PF

    Published value from supplied target entry

  • Plate to Cathode and Heater

    2.6 PF

    Published value from supplied target entry

  • Grid to Cathode and Heater

    1 PF

    Published value from supplied target entry