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Tube Tinker — Electron Tube Database
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Power - Beam (NOT sweep) ·BeamPower

815

Twin beam-power transmitting tube for push-pull RF amplification, oscillation, multiplication, driver, audio-amplifier, and modulator service.

Directly heatedCold cathodeCommon cathodeDissimilar
Sections
1
Base
-
Socket code
IO
Base pins
8
Nominal heater
6.3 V / 1.6 A

Description

Twin beam-power tube with center-tapped heater for push-pull audio amplifier/modulator and RF amplifier/oscillator service.

Socket description

International Octal

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base
-
Socket code
IO
Base pins
8
Nominal heater voltage
6.3 V
Nominal heater current
1.6 A
Parallel heater voltage
-
Parallel heater current
-
Series capable
No

Terminal pinout

Electrical assignments shared by every tube using this base designation.

No verified pinout is recorded for this base designation.

Section ratings

1 physical section, each with unique specifications.

Section 1

Beam Power

X-ray radiationInterelectrode capacitances
Transconductance
0.004 S
Amplification factor
6.5
Max plate voltage
500 V
Max screen voltage
225 V
Max plate dissipation
25 W
Max screen dissipation
10 W
Max cathode current
150 mA

Published ratings and characteristics promoted from the supplied General Electric source.

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

1950 General Electric Transmitting Types

Published operating points and test conditions from this source.

SECTION 1

Beam Power

Characteristic

  • HeaterOrFilamentVoltage

    6.3 V

  • HeaterOrFilamentCurrent

    1.6 A

Other

  • FrequencyForMaximumRatings

    150 MHz

  • PowerInput

    75 W

    PushPull;ClassC

Data set 02

1956 RCA Transmitting Tubes

Published operating points and test conditions from this source.

SECTION 1

Beam Power

Characteristic

  • Transconductance

    4000 µS

  • Amplification Factor

    6.5

Other

  • Maximum Plate Voltage

    500 V

  • Maximum Screen Voltage

    225 V

  • Maximum Plate Dissipation

    25 W

  • Maximum Cathode Current

    150 mA

  • Full-Input Operating Frequency Maximum

    125 MHz

  • Power Output

    54 W

    ClassAB2,AF,TwoSections

  • Heater Voltage Series

    12.6 V

  • Heater Current Series

    800 mA

  • Heater Voltage Parallel

    6.3 V

  • Heater Current Parallel

    1.6 A

  • Typical Plate Voltage

    500 V

    Representative published point

  • Typical Plate Current

    150 mA

    Representative published point