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Power - TV Horizontal Output (sweep) ·BeamPower-Diode

33GT7

Beam-power output tube intended for audio-frequency power amplification in series-heater radio or television receiving equipment.

Directly heatedCold cathodeCommon cathodeDissimilar
Sections
2
Base
-
Socket code
IO
Base pins
12
Nominal heater
33.6 V / 450 mA

Description

Compactron with high-perveance damping diode and beam-power pentode for TV horizontal-deflection amplification.

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
12
Nominal heater voltage
33.6 V
Nominal heater current
450 mA
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

2 physical sections, each with unique specifications.

Section 1

Diode

X-ray radiationInterelectrode capacitances
Max plate dissipation
3.5 W
Rectifier peak inverse voltage
2500 V
Rectifier nominal output current
125 mA
Rectifier peak forward current
750 mA
Rectifier forward voltage drop
21 V
Rectifier max heater-cathode voltage
2500 V

TV damper.

Section 2

Beam Power

X-ray radiationInterelectrode capacitances
Plate resistance
10000 Ω
Transconductance
0.0065 S
Amplification factor
4
Max plate voltage
400 V
Max screen voltage
150 V
Max plate dissipation
9 W
Max screen dissipation
2.5 W
Max cathode current
140 mA
Rectifier max heater-cathode voltage
200 V

Horizontal deflection; pulse plate 3500 V.

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

1968 General Electric Co

Published operating points and test conditions from this source.

SECTION 1

Diode

Characteristic

  • Tube Voltage Drop

    21 V

    Ib=250mA DC

SECTION 2

Beam Power

Other

  • Peak Positive Pulse Plate Voltage

    3500 V

    HorizontalDeflection