RD50XA

Power transmitting triode intended for RF amplification, oscillation, or related professional service. Manufacturer documentation emphasizes radio-frequency operation, useful power output, and transmitter or industrial applications.

Directly heatedCold cathodeCommon cathodeDissimilar

Sections: 1
Base: -
Socket code: -
Base pins: -
Nominal heater: 31.5 V / 225 A

Description

The TESLA RD50XA tube is a directly heat- Die TESLA-Rěhre RD50XA ist eine direkt ed triode of 50 kW anode dissipation, in- geheizte Triode mit 50 kW Anodenveriust- tended for use as an RF power amplifier or leistung, bestimmt als Hochfreguenz-Kraft- oscitlator at freguencies up to 3 Mc/s. verstárker oder Oszíillator fůr Freguenzen bis zu 3 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: 31.5 V
Nominal heater current: 225 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

Amplification factor: 44
Max plate voltage: 20000 V
Max plate dissipation: 50000 W
Max grid dissipation: 3000 W

Published characteristic ranges are preserved in parameters when no single scalar is printed.

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
31.5 V
Nominal or midpoint of published heater range
Heater current
225 A
Nominal or midpoint of published heater range

Other

Maximum anode dissipation
50000 W
Published tube rating

Capacitance

Interelectrode capacitance Ca/k
7 pF
Published source value
Interelectrode capacitance Cajgl
45 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
30 to 33 V
Heater current
210 A to 240 A
Maximum plate voltage
20000 V
Maximum plate dissipation
50000 W
Maximum control-grid dissipation
3000 W
Maximum frequency
3 MHz
Maximum plate voltage
17000 V
Oscillator; f < 1 MHz
Maximum plate voltage
15000 V
Anode modulation; f < 3 MHz

Capacitance

Grid-cathode capacitance
65 pF
Anode-cathode capacitance
7 pF
Anode-grid capacitance
45 pF

Characteristic

Amplification factor
44 to 52
Published range
Plate resistance
2000 to 2500 ohm
Published range