RD5XF

Air-cooled Tesla shortwave power triode for RF or AF amplification and oscillator service. Rated around 5 kW dissipation and 8.5 kV plate operation, it supports professional service to roughly 100 MHz.

Directly heatedCold cathodeCommon cathodeDissimilar

Sections: 1
Base: -
Socket code: -
Base pins: -
Nominal heater: 11 V / 125 A

Description

The TESLA RD5XF tube is an air-cooled Die TESLA-Rohre RD5XF ist eine luftge- short-wave triode of 5 kW anode dissipa- kůhlte Kurzwellentriode mit 5 kW Anoden- tion, suitable for use as an oscillator, AF or verlustleistung, geeignet als Oszillator und RF power amplifier at freguencies up to Hochfreguenz- sowie Niederfreguenz-Lei- 100 Mc/s. stungsverstárker fůr Freguenzen bis zu 100 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: 11 V
Nominal heater current: 125 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: 0.01 S
Max plate voltage: 8500 V
Max plate dissipation: 5000 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
11 V
Nominal or midpoint of published heater range
Heater current
125 A
Nominal or midpoint of published heater range

Other

Maximum anode dissipation
5000 W
Published tube rating

Capacitance

Interelectrode capacitance Cg/k
23.5 pF
Published source value
Interelectrode capacitance Ca/k
3 pF
Published source value
Interelectrode capacitance Ca/g
18.5 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
11 V
Heater current
115 A to 135 A
Maximum plate voltage
8500 V
Maximum plate dissipation
5000 W
Maximum frequency
100 MHz
Maximum plate voltage
5500 V
Oscillator; f < 100 MHz

Capacitance

Grid-cathode capacitance
23.5 pF
Anode-cathode capacitance
3 pF
Anode-grid capacitance
18.5 pF

Characteristic

Amplification factor
19 to 22
Published range
Plate resistance
2000 to 2500 ohm
Published range
Transconductance
10000 uS