TBH1238

Water-cooled industrial RF power triode using a directly heated thoriated-tungsten filament. Rated for approximately 20 kW plate dissipation and 13 kV plate voltage for high-power industrial oscillator and amplifier applications.

Directly heatedCold cathodeCommon cathodeDissimilar

Sections: 1
Base: -
Socket code: -
Base pins: -
Nominal heater: 8 V / 130 A

Description

Industrial RF power triode; directly heated thoriated-tungsten filament. Water cooled. Published sheet includes filament, capacitance, characteristic, cooling, and application/rating data.

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: 8 V
Nominal heater current: 130 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: 0.025 S
Amplification factor: 21
Max plate voltage: 13000 V
Max plate dissipation: 20000 W

Published RF triode characteristics and ratings; additional operating data retained in parameter rows.

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

1999 Philips E-Z

Published operating points and test conditions from this source.

SECTION 1

Triode

Other

Anode voltage
12000 V
Anode current
2 A
Transconductance
25000 µS
Amplification factor
21
Anode capacitance
0.9 pF
Grid capacitance
45 pF
Anode-grid capacitance
23.5 pF
Maximum anode voltage
13000 V
Maximum anode dissipation
20000 W