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Power - Beam (NOT sweep) ·BeamPower

5932

Rugged beam-power amplifier designed for control and power-amplifier service in equipment exposed to severe vibration and shock.

Directly heatedCold cathodeCommon cathodeDissimilar
Sections
1
Base
7AC
Socket code
IO
Base pins
7
Nominal heater
6.3 V / 900 mA

Description

Rugged beam-power amplifier tube designed for control or power-amplifier service under severe vibration and shock.

Socket description

International Octal

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base
7AC
Socket code
IO
Base pins
7
Nominal heater voltage
6.3 V
Nominal heater current
900 mA
Parallel heater voltage
-
Parallel heater current
-
Series capable
No

7AC - Terminal pinout

Electrical assignments shared by every tube using this base designation.

TerminalSectionConnectionEvidence
PIN1Pin 1—NCVerified

12L6GT/25L6GT manufacturer basing, 7AC

PIN2Pin 2—H — HeaterVerified

12L6GT/25L6GT manufacturer basing, 7AC

PIN3Pin 3AP — Plate (Anode)Verified

12L6GT/25L6GT manufacturer basing, 7AC

PIN4Pin 4AG2 — Screen GridVerified

12L6GT/25L6GT manufacturer basing, 7AC

PIN5Pin 5AG1 — Control GridVerified

12L6GT/25L6GT manufacturer basing, 7AC

PIN7Pin 7—H — HeaterVerified

12L6GT/25L6GT manufacturer basing, 7AC

PIN8Pin 8ABP — Beam-Forming PlateGroup AC8Verified

12L6GT/25L6GT manufacturer basing, 7AC

PIN8Pin 8AK — CathodeGroup AC8Verified

12L6GT/25L6GT manufacturer basing, 7AC

Section ratings

1 physical section, each with unique specifications.

Section 1

Beam Power

X-ray radiationInterelectrode capacitances
Plate resistance
22500 Ω
Transconductance
0.006 S
Max plate voltage
400 V
Max screen voltage
300 V
Max plate dissipation
19 W
Max screen dissipation
2.5 W

Beam-power section; Class A operating data and output load/power retained as parameters.

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 Sylvania

Published operating points and test conditions from this source.

SECTION 1

Beam Power

Characteristic

  • Heater Voltage (Avg.) . . 6.3 Volts Ti2

    6.3 V

    Heater Voltage (Avg.) . . 6.3 Volts Ti2

  • Heater Voltage (Design Center) 6.3 Volts

    6.3 V

    Heater Voltage (Design Center) 6.3 Volts

  • Heater Current (Avg.) . 900 Ma

    900 Ma

    Heater Current (Avg.) . 900 Ma

  • Plate Voltage 400 360 Volts 48| TOP

    360 V

    Plate Voltage 400 360 Volts 48| TOP

  • Plate Dissipation 21 19.0 Watts

    19 W

    Plate Dissipation 21 19.0 Watts

  • Screen Dissipation . . . 275 2.5 Watts

    2.5 W

    Screen Dissipation . . . 275 2.5 Watts

  • Heater-Cathode Voltage . *200 #+180 Volts

    180 V

    Heater-Cathode Voltage . *200 #+180 Volts

  • Plate Voltage 250 Volts

    250 V

    Plate Voltage 250 Volts

  • Grid Voltage® . . ~-14 Volts

    -14 V

    Grid Voltage® . . ~-14 Volts

  • Peak AF Signal Voltage 14 Volts

    14 V

    Peak AF Signal Voltage 14 Volts

  • Plate Current (Zero Signal) . 58 72 86 Ma

    86 Ma

    Plate Current (Zero Signal) . 58 72 86 Ma

  • Screen Current (Zero Signal) 0 5 8 Ma

    8 Ma

    Screen Current (Zero Signal) 0 5 8 Ma

  • Plate Resistance . 22500 Ohms

    22500 Ohms

    Plate Resistance . 22500 Ohms

  • Load Resistance . 2500 Ohms

    2500 Ohms

    Load Resistance . 2500 Ohms

  • Power Output 5.4 6.5 Watts

    6.5 W

    Power Output 5.4 6.5 Watts

  • Plate Voltage e 300 350 Volts

    350 V

    Plate Voltage e 300 350 Volts

  • Screen Voltage 200 250 Volts

    250 V

    Screen Voltage 200 250 Volts

  • Grid Voltage? . -12.5 -18 Volts

    -18 V

    Grid Voltage? . -12.5 -18 Volts

  • Peak AF Signal Voltage 12.5 18 Volts

    18 V

    Peak AF Signal Voltage 12.5 18 Volts

  • Plate Current (Zero Signal) . 48 54 Ma

    54 Ma

    Plate Current (Zero Signal) . 48 54 Ma

  • Screen Current (Zero Signal) 2.5 2.5 Ma

    2.5 Ma

    Screen Current (Zero Signal) 2.5 2.5 Ma

  • Plate Resistance . 35000 33000 Ohms

    33000 Ohms

    Plate Resistance . 35000 33000 Ohms

  • Load Resistance . 4500 4200 Ohms

    4200 Ohms

    Load Resistance . 4500 4200 Ohms

  • Power Output . 6.5 10.8 Watts

    10.8 W

    Power Output . 6.5 10.8 Watts

  • Plate Voltage . 250 270 360 360 360 360 Volts

    360 V

    Plate Voltage . 250 270 360 360 360 360 Volts

  • Screen Voltage 250 250 270 270 225 270 Volts

    270 V

    Screen Voltage 250 250 270 270 225 270 Volts

  • Grid Voltage® . . -16 -17.5 -22.5 -22.5 -18 -22.5 Volts

    -22.5 V

    Grid Voltage® . . -16 -17.5 -22.5 -22.5 -18 -22.5 Volts

  • Peak AF Grid to Grid Voltage 32 35 45 45 52 72 Volts

    72 V

    Peak AF Grid to Grid Voltage 32 35 45 45 52 72 Volts

  • Plate Current (Zero Signal) . 120 134 88 88 78 88 Ma

    88 Ma

    Plate Current (Zero Signal) . 120 134 88 88 78 88 Ma

  • Screen Current (Zero Signal) . 10 11 5 5 3.5 5 Ma

    5 Ma

    Screen Current (Zero Signal) . 10 11 5 5 3.5 5 Ma

  • Load Resistance . . . . . 5000 5000 6600 3800 6000 3800 Ohms

    3800 Ohms

    Load Resistance . . . . . 5000 5000 6600 3800 6000 3800 Ohms

  • Power Output . 145 175 26.5 18 31 47 Watts

    47 W

    Power Output . 145 175 26.5 18 31 47 Watts

  • .25 megobm may be used for self bias providing the beater voltage will not exceed 7.0 volts under an

    7 V

    .25 megobm may be used for self bias providing the beater voltage will not exceed 7.0 volts under any prob-

Other

  • Heater Voltage (Abs. Max.) 7.0 Volts 3.844"MAX. 3.281°MA)

    7 V

    Heater Voltage (Abs. Max.) 7.0 Volts 3.844"MAX. 3.281°MA)

  • Heater Current (Max.)2 . 960 Ma f

    960 Ma

    Heater Current (Max.)2 . 960 Ma f

  • Heater Current (Min.)2 . 840 Ma 1,265 MAX

    840 Ma

    Heater Current (Min.)2 . 840 Ma 1,265 MAX

  • Screen Voltage . 300 270 Volts 1L 655 MAX

    270 V

    Screen Voltage . 300 270 Volts 1L 655 MAX

  • Plate Current (Maximum Signal) 79 Ma

    79 Ma

    Plate Current (Maximum Signal) 79 Ma

  • Screen Current (Maximum Signal) 7.3 Ma

    7.3 Ma

    Screen Current (Maximum Signal) 7.3 Ma

  • Plate Current (Maximum Signal) 55 66 Ma

    66 Ma

    Plate Current (Maximum Signal) 55 66 Ma

  • Screen Current (Maximum Signal) 4.7 7.0 Ma

    7 Ma

    Screen Current (Maximum Signal) 4.7 7.0 Ma

  • Plate Current (Max. Sigpal) . 140 155 132 140 142 205 Ma

    205 Ma

    Plate Current (Max. Sigpal) . 140 155 132 140 142 205 Ma

  • Screen Current (Max. Signal) . 16 17 15 11 11 16 Ma

    16 Ma

    Screen Current (Max. Signal) . 16 17 15 11 11 16 Ma

Data set 02

195X General Electric Essential Characteristics

Published operating points and test conditions from this source.

SECTION 1

Beam Power

Other

  • Plate Voltage

    250 V

    ClassA

  • Screen Voltage

    250 V

    ClassA

  • Grid Voltage

    -14 V

    ClassA

  • Plate Current

    72 mA

    ClassA

  • Screen Current

    5 mA

    ClassA

  • Load Resistance

    2500 ohm

    ClassA

  • Power Output

    6.5 W

    ClassA