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Voltage - Triode (single high frequency) ·Triode

7625

Metal-ceramic planar triode for high-frequency electronic service.

Directly heatedCold cathodeCommon cathodeDissimilar
Sections
1
Base
-
Socket code
-
Base pins
-
Nominal heater
6.3 V / 215 mA

Description

Metal-ceramic or planar triode.

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
215 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
Plate resistance
57000 Ω
Amplification factor
80
Max plate voltage
275 V
Max plate dissipation
0.85 W
Max cathode current
3.8 mA

Promoted only from clearly labeled printed ratings/characteristics; specialized and operating data retained in parameter rows.

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

Other

  • Heater Voltage, AC or DC*. . . . .. 6.3=0.3 Volts See Outline Drawing on page 3 for dimensions and elec-

    0.3 Volts

    Published datasheet; semantic line recovery

  • Heater Currentt. .. ................ 0.215 Amperes trical connections

    0.215 Amperes

    Published datasheet; semantic line recovery

  • Grid to Plate: (gtop). ............. 1.3 pf

    1.3 pf

    Published datasheet; semantic line recovery

  • Output: pto (h+k)............... 0.03 pf

    0.03 pf

    Published datasheet; semantic line recovery

  • Heater to Cathode: (htok)......... 1.5 pf

    1.5 pf

    Published datasheet; semantic line recovery

  • DC Plate Voltage. . . ................275 Volts Cathode. .....................

    275 Volts

    Published datasheet; semantic line recovery

  • Peak Plate Voltage. . . ............... 400 Volts Heater Negative with Respect to

    400 Volts

    Published datasheet; semantic line recovery

  • Positive Peak and DC Grid Voltage. . . . .. 0 Volts Cathode. .. L 50 Volts

    0 Volts

    Published datasheet; semantic line recovery

  • Positive Peak and DC Grid Voltage. . . . .. 0 Volts Cathode. .. L 50 Volts

    50 Volts

    Published datasheet; semantic line recovery

  • egatlvle .ea ) an rid Voltage. . ... olts Bias$.. ... .. ... ... ..., 0.2 Megohms

    0.2 Megohms

    Published datasheet; semantic line recovery

  • Plate Dissipation. ... ...............0.85 Watts Envelope Temperature at Hottest

    0.85 Watts

    Published datasheet; semantic line recovery

  • DC Cathode Current. ................ 3.8 Milliamperes Pointf .. ..... . ... .. ... .. ... .. 250 C

    3.8 Milliamperes

    Published datasheet; semantic line recovery

  • Plate Voltage. . . .................... 150 Volts Plate Current. ..0.95 Milliamperes

    150 Volts

    Published datasheet; semantic line recovery

  • Plate Voltage. . . .................... 150 Volts Plate Current. ..0.95 Milliamperes

    0.95 Milliamperes

    Published datasheet; semantic line recovery

  • Cathode-Bias Resistor. .. ...........1000 Ohms Grid Voltage, approx1mate

    1000 Ohms

    Published datasheet; semantic line recovery

  • Amplification Factor. ... .............. 80 Ib =10 Microamperes,

    10 Microamperes

    Published datasheet; semantic line recovery

  • Plate Resistance, approximate.......57000 Ohms Eb=250Volts. ................ —4.6 Volts

    57000 Ohms

    Published datasheet; semantic line recovery

  • Plate Resistance, approximate.......57000 Ohms Eb=250Volts. ................ —4.6 Volts

    250 Volts

    Published datasheet; semantic line recovery

  • Plate Resistance, approximate.......57000 Ohms Eb=250Volts. ................ —4.6 Volts

    4.6 Volts

    Published datasheet; semantic line recovery

  • 1 Heater current of a bogey tube at Ef =6.3 volts. possible tube life. The 7625 is also capable of operation at

    6.3 volts

    Published datasheet; semantic line recovery

  • when 300 volts RMS, 60 cps, is applied between the plate

    300 volts

    Published datasheet; semantic line recovery

  • and Rk =82 ohms. Following the test, tubes are evaluated for low frequency vibrational output, heater-cathode

    82 ohms

    Published datasheet; semantic line recovery

  • 260 voltages applied, and evaluated for cathode interface resistance following

    260 volt

    Published datasheet; semantic line recovery

  • _osg’ "°°_j_||w|2-- trol heater-cathode defects. Conditions of test include Ef=7.0 volts

    7 volts

    Published datasheet; semantic line recovery

  • hoaor 125 1 [~ 70 volts with heater positive with respect to cathode. Following this test,

    70 volts

    Published datasheet; semantic line recovery

  • Heater Voltage

    6.3 V

    Published datasheet

  • Heater Current

    215 mA

    Published datasheet