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Rectifier - Damper Diode ·Rectifier

6DQ3

Half-wave vacuum rectifier designed as a damper diode in television horizontal-deflection circuits.

Directly heatedCold cathodeCommon cathodeDissimilar
Sections
1
Base
12FX
Socket code
-
Base pins
12
Nominal heater
6.3 V / 1.8 A

Description

Half-wave vacuum rectifier used as a damper tube in television horizontal-deflection circuits. It is an explicit heater variant/co-designation in 25CG3.pdf.

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base
12FX
Socket code
-
Base pins
12
Nominal heater voltage
6.3 V
Nominal heater current
1.8 A
Parallel heater voltage
-
Parallel heater current
-
Series capable
No

12FX - 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

Rectifier

X-ray radiationInterelectrode capacitances
Max plate dissipation
6.5 W
Rectifier peak inverse voltage
6000 V
Rectifier nominal output current
350 mA
Rectifier peak forward current
2.1 A
Rectifier forward voltage drop
25 V
Rectifier warm-up time
11 s

Promoted from published ratings/characteristics where directly applicable; additional published values retained in TUBE_SECTION_PARAMETER.

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

1975 RCA RC30

Published operating points and test conditions from this source.

SECTION 1

Rectifier

Other

  • Heater Warm-up Time —

    11 s

    Other;PublishedValue1

  • Heater Warm-up Time —

    11 s

    Other;PublishedValue2

  • Peak Inverse Plate Voltage*

    5000 V

    MaximumRating

  • Peak Plate Current

    2100 mA

    MaximumRating

  • Average Plate Current

    300 mA

    MaximumRating;PublishedValue1

  • Average Plate Current

    350 mA

    MaximumRating;PublishedValue2

  • Plate Dissipation

    6.5 W

    MaximumRating

  • Peak value

    -5000 V

    MaximumRating

  • Average value

    100 V

    MaximumRating;PublishedValue1

  • Average value

    900 V

    MaximumRating;PublishedValue2

  • Tube VoitAge Drop for plate current of

    700 mA

    MaximumRating;PublishedValue1

  • Tube VoitAge Drop for plate current of

    25 mA

    MaximumRating;PublishedValue2

  • Peak Inverse Plate Voltage

    6000 V

    Section1;Promoted