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Voltage - Triode (single high frequency) ·Triode

R242P

Subminiature high-frequency oscillator triode for very-short-wave operation.

Directly heatedCold cathodeCommon cathodeDissimilar
Sections
1
Base
-
Socket code
-
Base pins
-
Nominal heater
6.8 V / 150 mA

Description

Subminiature high-frequency oscillator triode for very-short-wave operation.

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
6.8 V
Nominal heater current
150 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

1 physical section, each with unique specifications.

Section 1

Triode

X-ray radiationInterelectrode capacitances
Plate resistance
400 Ω
Transconductance
0.0425 S
Amplification factor
147
Max plate voltage
165 V
Max plate dissipation
8 W

Published ratings and characteristics promoted from the approved source.

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

1953 La Radiotechnique

Published operating points and test conditions from this source.

SECTION 1

Triode

Other

  • HeaterVoltageNominal

    6.8 V

    Nominal

  • HeaterCurrentNominal

    150 mA

    Nominal

  • Maximum Plate Voltage

    165 V

  • Maximum Plate Dissipation

    8 W

Characteristic

  • Transconductance

    42500 µS

    Typical

  • Amplification Factor

    147

    Typical

  • Plate Resistance

    400 ohm

    Typical