TC2250

Directly heated Philips transmitting power triode for RF oscillator, amplifier, and Class B service. Rated around 2 kV and 250 W dissipation, it supports medium-power professional transmitters.

Directly heatedCold cathodeCommon cathodeDissimilar

Sections: 1
Base: -
Socket code: -
Base pins: -
Nominal heater: 10 V / 2.5 A

Description

Directly heated transmitting triode for oscillator, RF amplifier and Class-B 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: 2.5 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: 0.006 S
Max plate voltage: 2000 V
Max plate dissipation: 250 W
Max cathode current: 430 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
2.5 A
Transconductance
6000 uS

Other

Maximum plate voltage
2000 V
Maximum plate dissipation
250 W
Maximum cathode current
430 mA
Operating plate voltage
2000 V
ClassC;Telegraphy
Operating plate current
375 mA
ClassC;Telegraphy
Output power
500 W
ClassC;Telegraphy

Capacitance

Plate/anode capacitance
3.5 pF
Grid capacitance
26.5 pF
Plate-grid capacitance
15.5 pF