MY3275

Mullard power triode for substantial Class B output service. Rated around 275 W plate dissipation and 3 kV, a push-pull pair is specified for approximately 1.2 kW output.

Directly heatedCold cathodeCommon cathodeDissimilar

Sections: 1
Base: -
Socket code: -
Base pins: -
Nominal heater: 14 V / 6.5 A

Description

Triode; electrical ratings and operating data extracted from the supplied Mullard datasheet.

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: 14 V
Nominal heater current: 6.5 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

Plate resistance: 1900 Ω
Transconductance: 0.0085 S
Amplification factor: 16
Max plate voltage: 3000 V
Max plate dissipation: 275 W
Max cathode current: 500 mA

Ratings and characteristics extracted from supplied source.

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

1963 Mullard

Published operating points and test conditions from this source.

SECTION 1

Triode

Characteristic

HeaterOrFilamentVoltage
14 V
HeaterOrFilamentCurrent
6.5 A
Plate Voltage
2000 V
Plate Current
160 mA
Transconductance
8.5 mA/V
Amplification Factor
16
Plate Resistance
1.9 kohm
Input Capacitance
11.5 pF
Output Capacitance
7 pF
Grid To Plate Capacitance
18 pF

Other

Power Output
1.2 kW
TwoTubes;PushPull;ClassB