YL1050

Forced-air-cooled metal-ceramic transmitting tetrode for linear, Class C RF, and television transmitter stages. It combines high transconductance with roughly 1.6 kW plate dissipation and operation extending into the lower-gigahertz region.

Directly heatedCold cathodeCommon cathodeDissimilar

Sections: 1
Base: -
Socket code: -
Base pins: -
Nominal heater: 4 V / 23 A

Description

Forced-air-cooled metal-ceramic tetrode for frequencies to about 1.25 GHz, suited to class-AB linear, class-C power and television transmitter stages.

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: 23 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: 0.055 S
Amplification factor: 12
Max plate voltage: 3000 V
Max screen voltage: 1000 V
Max plate dissipation: 1600 W
Max screen dissipation: 30 W
Max grid dissipation: 10 W
Max cathode current: 1.3 A

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 Siemens

Published operating points and test conditions from this source.

SECTION 1

Tetrode

Other

FrequencyLimit
1250 MHz
Power Output
1000 W
60 MHz; Class AB linear amplifier; one tone

Characteristic

Typical Plate Voltage
2000 V
Typical Screen Voltage
500 V
Typical Plate Current
1 A

Capacitance

CathodeControlGridCapacitance
40 pF
CathodeScreenGridCapacitance
1.4 pF
ControlGridScreenGridCapacitance
43 pF
ScreenGridAnodeCapacitance
11 pF