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Voltage - Triode (under 100V) ·Triode

YG1000

Directly heated Telefunken electrometer triode for measuring extremely small currents in bridge, pH, radiation, and vacuum-tube voltmeter circuits.

Directly heatedCold cathodeCommon cathodeDissimilar
Sections
1
Base
-
Socket code
-
Base pins
-
Nominal heater
1.25 V / 50 mA

Description

The Telefunken YG1000 is a directly heated electrometer triode for measuring extremely small currents in high-impedance bridge, pH, radiation, and tube-voltmeter circuits.

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
1.25 V
Nominal heater current
50 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

Triode

X-ray radiationInterelectrode capacitances
Transconductance
0.00018 S
Max plate voltage
12 V

Electrometer triode.

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

Triode

Characteristics

  • Heater Voltage

    1.25 V

  • Heater Current

    50 mA

    Approximate

  • Plate Voltage

    10 V

  • Plate Current

    0.24 mA

  • Transconductance

    180 uS

  • Input Current Maximum

    0.0000000006 mA