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TC140

Transmitting power triode intended for RF amplification, oscillator, modulation, or industrial generator service. Manufacturer documentation emphasizes professional radio-frequency operation and substantial power handling.

Directly heatedCold cathodeCommon cathodeDissimilar

Sections: 1
Base: -
Socket code: -
Base pins: -
Nominal heater: 6 V / 1.1 A

Description

Directly heated transmitting triode with low filament consumption and 40 W plate dissipation. The supplied Philips source was read for heater or filament data, ratings, characteristics, capacitances, and representative operating conditions.

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: 6 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

Plate resistance: 6500 Ω
Transconductance: 0.016 S
Amplification factor: 11
Max plate voltage: 1000 V
Max plate dissipation: 40 W
Max cathode current: 80 mA

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

Characteristics

Heater/filament voltage
6 V
Heater/filament current
1.1 A
Transconductance
16000 uS
Amplification factor
11
Plate resistance
6500 ohm

Other

Maximum plate voltage
1000 V
Maximum plate dissipation
40 W
Maximum cathode current
80 mA
Operating plate voltage
1000 V
RFService;70PercentEfficiency
Operating plate current
80 mA
RFService;70PercentEfficiency
Output power
56 W
RFService;70PercentEfficiency