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TAD1

Directly heated power triode intended for audio output service. Approximately 15 W plate dissipation, low amplification factor, and published push-pull operating data make it a conventional low-frequency output device.

Directly heatedCold cathodeCommon cathodeDissimilar

Sections: 1
Base: -
Socket code: -
Base pins: -
Nominal heater: 4 V / 950 mA

Description

Directly heated power triode intended for output service; the source also gives push-pull operating data for a pair of TAD1 tubes.

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: 4 V
Nominal heater current: 950 mA
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: 2300 Ω
Transconductance: 0.006 S
Amplification factor: 4
Max plate voltage: 550 V
Max plate dissipation: 15 W

Published ratings and characteristics promoted where clearly stated; repeated identical sections compressed where applicable.

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

195X Tunsgram

Published operating points and test conditions from this source.

SECTION 1

Triode

Characteristics

Heater or filament voltage
4 V
Published nominal value
Heater or filament current
950 mA
Published nominal value
Transconductance
6000 µS
Published operating characteristic

Other

Maximum plate dissipation
15 W
Published maximum rating