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Rectifier - Damper Diode ·BeamPower-Diode

53HK7

Combined damper and beam-power horizontal-deflection tube intended for television line-output service, integrating sweep amplification and recovery functions.

Directly heatedCold cathodeCommon cathodeDissimilar
Sections
2
Base
12FS
Socket code
-
Base pins
12
Nominal heater
53.2 V / 315 mA

Description

Duodecar television tube combining a damper diode with a beam-power horizontal-deflection section. Extracted from the supplied RCA Receiving Tube Manual excerpt.

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base
12FS
Socket code
-
Base pins
12
Nominal heater voltage
53.2 V
Nominal heater current
315 mA
Parallel heater voltage
-
Parallel heater current
-
Series capable
No

12FS - 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
Rectifier peak inverse voltage
4200 V
Rectifier nominal output current
200 mA
Rectifier peak forward current
1.2 A
Rectifier forward voltage drop
16 V

Reference/equivalence-only source: ratings/characteristics for this section are not reproduced; missing promoted values intentionally not inferred from the external 38HK7 datasheet.

Section 2

Beam Power

X-ray radiationInterelectrode capacitances
Plate resistance
6200 Ω
Transconductance
0.0088 S
Amplification factor
4.2
Max plate voltage
500 V
Max screen voltage
150 V
Max plate dissipation
10 W
Max screen dissipation
3.5 W
Max cathode current
230 mA

Reference/equivalence-only source: ratings/characteristics for this section are not reproduced; missing promoted values intentionally not inferred from the external 38HK7 datasheet.

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

Other

  • Heater Voltage

    53.2 V

  • Heater Current

    315 mA

Data set 02

1975 RCA RC30

Published operating points and test conditions from this source.

SECTION 1

Diode

Other

  • Peak plate current

    1200 mA

    DamperService

  • Average plate current

    200 mA

    DamperService

SECTION 2

Beam Power

Other

  • Peak positive-pulse plate voltage

    5000 V

    HorizontalDeflection

  • Peak cathode current

    800 mA

    HorizontalDeflection

  • Average cathode current

    230 mA

    HorizontalDeflection

  • Class A plate voltage

    130 V

    ClassA PentodeConnection

  • Class A plate current

    60 mA

    ClassA PentodeConnection