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Power - Tetrode (NOT beam) ·Tetrode

350A

Western Electric air-cooled heater-cathode transmitting tetrode designed for RF power service. Its construction supports professional radio-frequency amplifier operation.

Directly heatedCold cathodeCommon cathodeDissimilar
Sections
1
Base
-
Socket code
UY5
Base pins
5
Nominal heater
6.3 V / 1.6 A

Description

The Western Electric 350A is an air-cooled heater-cathode transmitting tetrode intended for RF power service.

Socket description

Medium 5-contact

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base
-
Socket code
UY5
Base pins
5
Nominal heater voltage
6.3 V
Nominal heater current
1.6 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

Tetrode

X-ray radiationInterelectrode capacitances
Transconductance
0.0064 S
Max plate voltage
600 V
Max plate dissipation
30 W

Air-cooled transmitting tetrode.

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

1956 Western Electric Tubes

Published operating points and test conditions from this source.

SECTION 1

Tetrode

Other

  • Maximum Plate Current

    125 mA

  • Maximum Frequency

    30 MHz

  • Typical Maximum Power Output

    24 W

    ClassB; RF

Characteristics

  • Typical Plate Voltage

    500 V

  • Typical Plate Current

    55 mA