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Voltage - Triode (single) ·Triode

Y1251

General Electric ceramic-metal planar triode; available source material does not establish a narrower functional role confidently.

Directly heatedCold cathodeCommon cathodeDissimilar
Sections
1
Base
-
Socket code
-
Base pins
-
Nominal heater
6.3 V / 240 mA

Description

The Y1251 is described by the approved General Electric datasheet.

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
6.3 V
Nominal heater current
240 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
0.013 S
Amplification factor
65
Max plate voltage
200 V
Max plate dissipation
2.5 W
Max cathode current
20 mA

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

1968 General Electric Co

Published operating points and test conditions from this source.

SECTION 1

Triode

Characteristic

  • Heater Voltage ACor DCe 6 0 6 3

    6.6 V

    AVERAGE CHARACTERISTICS - Test Conditions

  • DO PIate VO a0E ottt ittt ittt ettt ettt te e e etas s seesete e ennnesasonnnesssnnnnnenes

    150 V

    AVERAGE CHARACTERISTICS - Test Conditions

  • L 1 1N R

    15 mA

    AVERAGE CHARACTERISTICS - Test Conditions

Other

  • Plate Voltage et ettt e et e et e et e et e e e e et et e et e

    200 V

    ABSOLUTE-MAXIMUM RATINGS

  • Negative DC Grid Voltage ittt e e e e et e ettt e

    50 V

    ABSOLUTE-MAXIMUM RATINGS

  • Plate Dissipation ccovvvvvveenn A e et t et et

    2.5 W

    ABSOLUTE-MAXIMUM RATINGS

  • DC Grid Current ottt c ittt aaennnnae O

    5 mA

    ABSOLUTE-MAXIMUM RATINGS

  • DC Cathode CUITeNt ottt i it ittt it enienesanaeannnn e e cevves

    20 mA

    ABSOLUTE-MAXIMUM RATINGS

  • Peak Cathode Current et t et et e e e

    80 mA

    ABSOLUTE-MAXIMUM RATINGS

  • Heater Negative with Respect to Cathode o i i e i et ien e

    50 V

    ABSOLUTE-MAXIMUM RATINGS

  • Grid CirCUit RESISTANCE vt v ittt ittt st teeae ettt teaeseenenatosannneeeesanseseesnnnnnennns

    10000 Ohm

    ABSOLUTE-MAXIMUM RATINGS