Y863

Ceramic-metal VHF power tetrode developed for high-power television linear-amplifier service. Its external-anode construction, roughly 15 kW plate dissipation, and high-voltage capability suit professional television transmitter retrofit and other demanding broadcast RF applications.

Directly heatedCold cathodeCommon cathodeDissimilar

Sections: 1
Base: -
Socket code: -
Base pins: -
Nominal heater: 7.5 V / 120 A

Description

The EIMAC Y863 is a ceramic/metal vhf power tetrode for vhf television linear-amplifier retrofit service.

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: 7.5 V
Nominal heater current: 120 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

Amplification factor: 8.5
Max plate voltage: 10000 V
Max screen voltage: 1500 V
Max plate dissipation: 15000 W
Max screen dissipation: 300 W
Max grid dissipation: 150 W
Max cathode current: 3.5 A

Promoted from printed general-characteristics and maximum-ratings/operating data.

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

1962 Eimac

Published operating points and test conditions from this source.

SECTION 1

Tetrode

Characteristic

Amplification factor
8.5

Other

Maximum plate voltage
10000 V
Maximum screen voltage
1500 V
Maximum plate dissipation
15000 W
Maximum screen dissipation
300 W
Maximum grid dissipation
150 W
Maximum cathode/plate current
3.5 A