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YA1000

Directly heated Telefunken diode with approximately 5 kV peak reverse-voltage capability, intended for high-voltage rectification or related diode service.

Directly heatedCold cathodeCommon cathodeDissimilar

Sections: 1
Base: -
Socket code: B9A
Base pins: 9
Nominal heater: 4 V / 325 mA

Description

The Telefunken YA1000 is a directly heated diode with a 5 kV peak reverse-voltage rating.

Socket description

Small-button Noval 9-contact

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base: -
Socket code: B9A
Base pins: 9
Nominal heater voltage: 4 V
Nominal heater current: 325 mA
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

Diode

X-ray radiationInterelectrode capacitances

Max plate voltage: 5000 V
Max plate dissipation: 0.5 W
Max cathode current: 5 mA
Rectifier peak inverse voltage: 5000 V

High-voltage diode.

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

1959 Telefunken

Published operating points and test conditions from this source.

SECTION 1

Diode

Characteristics

Plate Voltage
300 V
Plate Current
0.4 mA
Plate-to-Filament Capacitance
1.25 pF

Other

Peak Reverse Voltage
5000 V
Maximum Plate Current
5 mA