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RD20XK

Tesla high-power transmitting triode for RF or AF amplification and oscillator service to about 30 MHz. Approximately 20 kW anode dissipation makes it suitable for major professional transmitter and industrial-generator installations.

Directly heatedCold cathodeCommon cathodeDissimilar

Sections: 1
Base: -
Socket code: -
Base pins: -
Nominal heater: 12.5 V / 106 A

Description

The TESLA RD20XK tube is an air-cooled Die TESLA-Rěhre RD20XK ist eine luft- triode of 20 kW anode dissipation, suitable gekůhlte Triode mit 20 kW Anodenverlust- for use as an oscillator, AF or RF power leistung, geeignet als Oszillator und Nieder- amplifier at freguencies up to 30 Mc/s. freguenz- oder Hochfreguenz-Kraftverstár- ker fůúr Freguenzen bis zu 30 MHz.

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: 12.5 V
Nominal heater current: 106 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: 0.02 S
Amplification factor: 26
Max plate dissipation: 20000 W

Promoted fields populated from published maximum-ratings/characteristic tables where OCR semantics were unambiguous.

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

195X Tesla

Published operating points and test conditions from this source.

SECTION 1

Triode

Characteristics

Heater voltage
12.5 V
Nominal or midpoint of published heater range
Heater current
106 A
Nominal or midpoint of published heater range

Other

Maximum anode dissipation
20000 W
Published tube rating

Capacitance

Interelectrode capacitance Cz/k
58 pF
Published source value
Interelectrode capacitance Ca/k
4 pF
Published source value
Interelectrode capacitance C,/'
35 pF
Published source value

Data set 02

1966 Tesla Tubes

Published operating points and test conditions from this source.

SECTION 1

Triode

Other

Heater voltage
12.5 V
Heater current
102 A to 110 A
Cooling water flow
500 L/min
Cooling