8495

Extremely high-voltage high-mu power triode designed for pulse-modulator and high-voltage switching service. Rated to approximately 160 kV plate voltage, with 2.5 kW plate dissipation and pulse cathode current reaching roughly 22 A.

Directly heatedCold cathodeCommon cathodeDissimilar

Sections: 1
Base: -
Socket code: -
Base pins: -
Nominal heater: 12.6 V / 29 A

Description

The Machlett ML-8495 is a high-voltage triode for pulse-modulator and high-voltage switching 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: 12.6 V
Nominal heater current: 29 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

Amplification factor: 250
Max plate voltage: 160000 V
Max plate dissipation: 2500 W
Max grid dissipation: 50 W
Max cathode current: 22 A

Maximum ratings promoted from the printed pulse/CW service tables. X-ray flag follows the explicit source warning.

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

1971 Machlette Laboratories

Published operating points and test conditions from this source.

SECTION 1

Triode

Characteristic

Amplification factor
250

Other

Maximum DC/peak plate voltage
160000 V
Maximum plate dissipation
2500 W
Maximum grid dissipation
50 W
Maximum pulse cathode current
22 A