Western electric 351 a brochure

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western electric 351 a brochure

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Page 2

351A - PAGE 2
GENERAL CHARACTERISTICS

ELECTRICAL DATA

Heater Voltage , , . 6.3 volts
Heater Current 1.0 ampere

MECHANICAL DATA

Cathode . . Coated unipotential
Bulb , , , STIZ

Base . Small shell octaI
Mounting Position . , , . . . . . . . Any

Dimensions and pin connections shown 1n outline drawing on Page 4

MAXIMUM RATINGS, Design-Center Values

Peak Inverse Voltage 1250 volts

Peak Plate Current per Plate 300 milliamperes
Peak Transient Plate Current per Plate 1.0 ampere

Peak Heater-Cathode Voltage 450 volts

With Choke-Inpul Filter:

A-C Plate Voltage per Plate (RMS) 400 volts

D-C Output Current 100 milliamperes
Minimum Input-Choke Inductance 4 henrys

with Condenser-Input Filter:

A-C Plate Voltage per Plate (RMS) 350 volts
D-C Output Current 100 milliamperes
Minimum Total Effective Plate-Supply Impedance per Plate .75 ohms

TYPICAL OPERATING CONDITIONS

WiIh Choke-InpuI Filter:

A- C Plate Voltage per Plate (RMS) 350 volts

D- C Output Current 100 milliamperes
D- C Output Volts Approximate at Input to Filter 290 volts

Filter Input Choke 6 henrys

With Condenser-Input Filter:

A-C Plate Voltage per Plate (RMS) 500 volts

D-C Output Current , . 90 milliamperes
D-C Output Volts. Approximate. at Input to Filter , 340 volts

Total Effective Plate-Supply Impedance per Plate 150 ohms

Filter Input Condenser , I . . . . . . . . . . . . 4 microfarads