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Power - Triode Single (under 10W) ·Triode

TA045

RF power transmitting triode for amplifier, oscillator, communications, broadcast, or industrial high-frequency generator service.

Directly heatedCold cathodeCommon cathodeDissimilar
Sections
1
Base
-
Socket code
-
Base pins
-
Nominal heater
5 V / 1.6 A

Description

Directly heated Philips transmitting triode with tungsten filament, intended for amateur transmitter service. The source gives filament data, anode voltage and dissipation, amplification factor, transconductance, and internal resistance.

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
5 V
Nominal heater current
1.6 A
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

1 physical section, each with unique specifications.

Section 1

Triode

X-ray radiationInterelectrode capacitances
Plate resistance
11000 Ω
Transconductance
0.0009 S
Amplification factor
10
Max plate voltage
400 V
Max plate dissipation
10 W

Transmitting triode

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

1999 Philips E-Z

Published operating points and test conditions from this source.

SECTION 1

Triode

Other

  • Gloeispanning v

    50 V

  • Gloeistroom ir =*

    16 A

  • Anodedissipatie w,

    10 W

  • Anodedissipatie beproefd op wye

    20 W

  • Verzadigingsstroom i,

    75 mA

  • Anodespanning v

    400 V

  • Steilheid S =*

    9 mA

  • Gloeispanning vp

    57 V

  • Gloeistroom i —*

    19 A

  • Anodedissipatie w,

    20 W

  • Anodedissipatie beproefd op we

    50 W

  • Verzadigingsstroom i, —

    100 mA

  • Anodespanning va = 500

    ~800 V

  • Steilheid S =*

    14 mA

  • Gloeispanning vp = 6

    ~75 V

  • Gloeistroom i =*

    1.25 A

  • Anodedissip. bepr. opw,,

    15 W

  • Verzadigingsstroom i, = ca

    500 mA

  • Max. anodespanning v, = 200—

    ~400 V

  • Steilheid S = ca

    20 mA

  • Ve 2 G-/

    5 V

  • V3 = max

    400 V

    Modulator

  • is =ca

    500 mA

    Modulator

  • Wy

    10 W

    Modulator