Alternatives & variations Download PDF datasheet

756

Taylor directly heated carbon-anode transmitting triode for RF oscillator and power-amplifier service. Its early high-vacuum construction, kilovolt plate operation, and moderate plate dissipation provide useful transmitting power.

Directly heatedCold cathodeCommon cathodeDissimilar

Sections: 1
Base: -
Socket code: UX4
Base pins: 4
Nominal heater: 7.5 V / 2 A

Description

Taylor 756 is a 40-watt carbon-anode triode with a 7.5-volt 2-amp filament, 850-volt plate rating, 110 mA plate current, and amplification factor 20.

Socket description

Medium-shell UX 4-contact

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base: -
Socket code: UX4
Base pins: 4
Nominal heater voltage: 7.5 V
Nominal heater current: 2 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: 2800 Ω
Transconductance: 0.0025 S
Amplification factor: 8
Max plate voltage: 1250 V
Max plate dissipation: 40 W

Published maximum ratings and characteristics promoted from the approved datasheet; mode-specific values preserved as parameters.

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

193X Taylor Transmitting

Published operating points and test conditions from this source.

SECTION 1

Triode

Other

Filament Voltage
7.5 V
Nominal published value
Filament Current
2 A
Nominal published value
Maximum Operating Plate Voltage
1250 V
Class C oscillator / RF power-amplifier service where published
Maximum Plate Dissipation
40 W
Published maximum rating
Plate to Grid, mmf
8 pF
Published direct interelectrode capacitance
Grid to Filament, mmf
3.5 pF
Published direct interelectrode capacitance
Plate to Filament, mmf
2.7 pF
Published direct interelectrode capacitance

Characteristics

Plate Resistance
2800 ohm
Published general characteristic
Mutual Conductance
2500 µS
Published general characteristic
Amplification Factor
8
Published general characteristic

Data set 02

1940 Taylor Tubes

Published operating points and test conditions from this source.

SECTION 1

Triode

Characteristics

Plate current
110 mA
PlateVoltage=850V