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TC175

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: 10 V / 1.6 A

Description

Directly heated transmitting triode for oscillator and RF amplifier service. 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: 10 V
Nominal heater current: 1.6 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: 5000 Ω
Transconductance: 0.005 S
Amplification factor: 25
Max plate voltage: 1500 V
Max plate dissipation: 75 W
Max cathode current: 200 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
10 V
Heater/filament current
1.6 A
Transconductance
5000 uS
Amplification factor
25
Plate resistance
5000 ohm

Other

Maximum plate voltage
1500 V
Maximum plate dissipation
75 W
Maximum cathode current
200 mA
Operating plate voltage
1500 V
ClassC;Telegraphy
Operating plate current
120 mA
ClassC;Telegraphy
Output power
115 W
ClassC;Telegraphy

Capacitance

Plate/anode capacitance
4.6 pF
Grid capacitance
9.8 pF
Plate-grid capacitance
10.4 pF