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Power - Triode ·Triode-Triode

DET19

Twin low-power transmitting triode for push-pull RF amplification, oscillation, and frequency multiplication. Its matched sections and low capacitances provide a compact balanced power stage with useful operation to approximately 250 MHz.

Directly heatedCold cathodeCommon cathodeDissimilar
Sections
2
Base
-
Socket code
-
Base pins
-
Nominal heater
6.3 V / 800 mA

Description

Low-power twin transmitting triode for push-pull power amplifier, oscillator and frequency-multiplier service to 250 MHz; identical sections represented once.

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base
-
Socket code
-
Base pins
-
Nominal heater voltage
6.3 V
Nominal heater current
800 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

Triode

X-ray radiationInterelectrode capacitances
Plate resistance
3340 Ω
Transconductance
0.021 S
Amplification factor
7
Max plate voltage
300 V
Max plate dissipation
5 W
Max cathode current
40 mA

Applicable promoted ratings mapped semantically from the printed approximate-data/ratings tables; useful non-promoted operating, capacitance and service data retained in TUBE_SECTION_PARAMETER.

Section 2

Triode

X-ray radiationInterelectrode capacitances
Plate resistance
3340 Ω
Transconductance
0.021 S
Amplification factor
7
Max plate voltage
300 V
Max plate dissipation
5 W
Max cathode current
40 mA

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

1955 Marconi

Published operating points and test conditions from this source.

SECTION 1

Triode

Other

  • Plate Resistance

    3340 ohm

  • Heater-Cathode Voltage Maximum

    100 V

  • Anode-Anode Capacitance

    1 pF

  • Anode-Grid Capacitance

    2.3 pF

  • Anode-Cathode Capacitance

    0.6 pF

  • Grid-Cathode Capacitance

    4.2 pF

  • Frequency Maximum

    250 MHz

  • Push-Pull Plate Current Maximum

    80 mA

    ClassC;PushPull

  • Total Plate Dissipation Maximum

    10 W

    BothTriodes

  • Typical Frequency Doubler Output Frequency

    14 MHz

    FrequencyDoubler