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Power - Triode ·Triode

RV218

Telefunken power-amplifier triode for low-frequency amplification and transmitter circuits. Rated for approximately 24 W plate dissipation, with published AC output around 2.5 W and low amplification factor favoring power-output service.

Directly heatedCold cathodeCommon cathodeDissimilar
Sections
1
Base
-
Socket code
-
Base pins
-
Nominal heater
7 V / 1.1 A

Description

Power-amplifier triode capable of about 2.5 W AC output at 24 W plate dissipation; also used in transmitter circuits.

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
7 V
Nominal heater current
1.1 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
Transconductance
0.002 S
Amplification factor
7
Max plate dissipation
24 W

Published Telefunken ratings and characteristics promoted from the supplied German 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

1959 Telefunken

Published operating points and test conditions from this source.

SECTION 1

Triode

Characteristic

  • HeaterOrFilamentCurrent

    1.1 A

Other

  • Power Output

    2.5 W

    PlateDissipation=24W

  • Grid Bias

    -30 V

    PlateVoltage=440V