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TD1100A

Planar or disc-seal transmitting triode designed for high-frequency RF amplification or oscillator service. Low-inductance construction supports UHF or microwave operation beyond the practical range of conventional transmitting triodes.

Directly heatedCold cathodeCommon cathodeDissimilar

Sections: 1
Base: -
Socket code: -
Base pins: -
Nominal heater: 6.3 V / 1 A

Description

The Mullard TD1100A is a high-frequency disc-seal triode for grounded-grid Class C power amplification.

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: 6.3 V
Nominal heater current: 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: 4000 Ω
Transconductance: 0.025 S
Amplification factor: 100
Max plate voltage: 1000 V
Max plate dissipation: 100 W

High-frequency disc-seal triode for grounded-grid Class C power amplification.

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

Characteristics

Heater/Filament Voltage
6.3 V
Heater/Filament Current
1 A
Transconductance
25000 uS
Amplification Factor
100 ratio
Plate Resistance
4000 ohm

Other

Maximum Plate Voltage
1000 V
Maximum Plate Dissipation
100 W
Maximum Operating Frequency
2500 MHz
RF Output Power
12 W
Representative