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Power - Triode (over 1000V 100W) ·Triode

7604

Forced-air-cooled VHF power triode for oscillator, amplifier, and modulator service. Its external radiator handles hundreds of watts of dissipation, with full ratings through VHF and reduced-input operation extending toward UHF.

Directly heatedCold cathodeCommon cathodeDissimilar
Sections
1
Base
-
Socket code
-
Base pins
-
Nominal heater
-

Description

Westinghouse Janvary 1, 1941 VHF POWER TRIODE TYPE 7604 The 7604 is a three electrode tube designed for use as an oscillator, amplifier or modulator. The forced-air- cocled external radiator is capable of dissipating 600 watts. An efficient oxide coated cathode is employed. Maximum ratings apply to 60 megacycles and operation with reduced input is permissable to 350 megacycles. ELECTRICAL: MAXIMUM RATINGS - CLASS C TELEGRAPHY Cathede. v v v v oo e i i e e i ee v e Oxide Coated Unipotential {Key down conditions per tube without modulation} Haater: D.C. Plote Voltage . . .........000uunn 4000 VYolts Yoltage o v v v vt i e i e 5.0 Yolts D.C.Plate Current. . . v v v v v i m v v o n v o e 0.50 Ampares Current & . o it e e e e e e e 8.0 Ampsres D.C. Grid VYoltage . . . e -500 Yolts Amplification Factor. . . . .. ... .. ... ... 20 D.C. Grid Current, . ., < v v o i s v e v e e e e n s 0.075 Ampares Interelectrode Capacitances: Plate Input. . . . . . v 0ttt 1.8 Kilowats Gridto Plate. . . . . .

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
-
Nominal heater current
-
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
Max plate voltage
4000 V
Max plate dissipation
600 W
Max cathode current
500 mA

Source-derived physical/electrical section.

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

1947 Westinghouse

Published operating points and test conditions from this source.

SECTION 1

Triode

Other

  • The

    7604

    The 7604 is a three electrode tube designed for use as an oscillator, amplifier or modulator. The forced-air-

  • cocled external radiator is capable of dissipating

    600

    cocled external radiator is capable of dissipating 600 watts. An efficient oxide coated cathode is employed.

  • Maximum ratings apply to

    350

    Maximum ratings apply to 60 megacycles and operation with reduced input is permissable to 350 megacycles.

  • Haater: D.C. Plote Voltage

    4000

    Haater: D.C. Plote Voltage . . .........000uunn 4000 VYolts

  • Yoltage o v v v vt i e i e

    0.5

    Yoltage o v v v vt i e i e 5.0 Yolts D.C.Plate Current. . . v v v v v i m v v o n v o e 0.50 Ampares

  • Current & . o it e e e e e e e

    -500

    Current & . o it e e e e e e e 8.0 Ampsres D.C. Grid VYoltage . . . e -500 Yolts

  • Gridto Plate

    600

    Gridto Plate. . . . . . .0 i v i m i e 11.8 et Plate Dissipation . . ... ...y 600 Watts

  • Gridto Cathode

    15

    Gridto Cathode. . . ... ... ... ... . ... 26 ppaf Grid Dissipation . .. ... . ... ..o 15 Watts

  • Plate te Cathode . . v . v o v v v v e i e a e

    400

    Plate te Cathode . . v . v o v v v v e i e a e 0.24 pepf D.C. Grid Voltoge . .....oovvvenes —275 400 Volts

  • Peak R.F. Grid Voltage

    525

    Peak R.F. Grid Voltage .. ......... 370 525 Yolts

  • MECHANICAL: D.C. Plate Current. . . . .. o v v

    400

    MECHANICAL: D.C. Plate Current. . . . .. o v v 0.272 0,400 Amperes

  • Mounting Pesitionll , . ......... Vertical - anode up or down D.C.GridCurrent . .. ....... c

    0.069

    Mounting Pesitionll , . ......... Vertical - anode up or down D.C.GridCurrent . .. ....... c... 0.046 0.069 Amperes

  • Typeof Cooling + v v v v v v vt v it e i e e s Forced Air Peak R.F. Plate Voltage

    2950

    Typeof Cooling + v v v v v v vt v it e i e e s Forced Air Peak R.F. Plate Voltage. . . .. ...... 2100 2950 Yolts

  • Maximum Incoming Air Temperature

    35

    Maximum Incoming Air Temperature . . .. .. ... .. 45 °C Driving Power {(Approx.})® ., ... ... .. 17 35 Watte

  • Minimum Required Air Flow on Radiator: Power Qutput

    1100

    Minimum Required Air Flow on Radiator: Power Qutput . .. ... ... ... ...... 530 1100 Watts

  • Plote Dissipation. « v « v v e v v e v v v v vt oo ans

    600

    Plote Dissipation. « v « v v e v v e v v v v vt oo ans 600 Watts

  • Air Flow Cubic Feal per Min. .« . ...oou.e

    30

    Air Flow Cubic Feal per Min. .« . ...oou.e... 30 crFm R°F. POWER AMPLIFIER-CLASS AB

  • . 160 °C Max. Signal D.C. Plate Current. . .. ... ... 0.400

    0.4

    . 160 °C Max. Signal D.C. Plate Current. . .. ... ... 0.400 Amperes

  • Shipping Welghte . « v v e e e s e e e

    1.5

    Shipping Welghte . « v v e e e s e e e 3 Pounds Max. Slg'no! Pifna Input. o v v v e 1.5 Kilowatts

  • Plate Dissipation

    600

    Plate Dissipation . ... .......0ovur.. 600 Watts

  • sag"tol” | Grid Dissipation . .. ... ... ... . ...,

    15

    sag"tol” | Grid Dissipation . .. ... ... ... . ..., 15 Watts

  • 78 Class AB2 R-F Linear Amplifier {Ona Tuba)

    78

    78 Class AB2 R-F Linear Amplifier {Ona Tuba)

  • 2000"L 03" —m] e T Grovnded Grid Operation - Frequencies Bel

    60

    2000"L 03" —m] e T Grovnded Grid Operation - Frequencies Below 60 mc.:

  • %":é" D.C. Grid Voltage . . .. . ... v o

    -210

    %":é" D.C. Grid Voltage . . .. . ... v o -210 Yolts

  • D.C.Plate Current. . . . . v v v v v e v e aas

    285

    D.C.Plate Current. . . . . v v v v v e v e aas .285 Amperes

  • 1 Zero Signal Plate Current . ... .. ... ... 0.045 Amperes

    0.045

    1 Zero Signal Plate Current . ... .. ... ... 0.045 Amperes

  • D.C. Grid Currant

    0.008

    D.C. Grid Currant. . . ... .. ... .. ... 0.008 Amperes

  • Peak R.F. Grid Voltoga

    270

    . Peak R.F. Grid Voltoga. . .. ... ..... .. 270 Yolts

  • S%t% Plate Dissipation

    245

    S%t% Plate Dissipation. . . . . . ... .. ....... 245 Watts

  • 29 s, . Driving Power (Approx.}) . . . .o o vl 65 Watts

    65

    29 s, . Driving Power (Approx.}) . . . .o o vl 65 Watts

  • 18 MAK.W _;":la” Power Qutput (Apprex.). v v v v v v v w v v

    755

    18 MAK.W _;":la” Power Qutput (Apprex.). v v v v v v v w v v 755 Watts

  • 400 . . Plote Amperes

    400

    400 . . Plote Amperes

  • St

    1

    St 1o °"‘,ozI

  • KILOWATT LINEAR AMPLIFIER FOR

    10

    KILOWATT LINEAR AMPLIFIER FOR 80 THROUGH 10 METERS

  • 500 ppf National Plote Voltoge: 3500 V at 300 Ma.

    300

    500 ppf National Plote Voltoge: 3500 V at 300 Ma.

  • OOOIpf Barker

    6

    OOOIpf Barker 6 Willtamson

  • Termingl

    0.012

    Termingl 0.012 pf )

  • 0004 pf _

    4

    0004 pf _

  • Note

    90

    Note 1: Four 0.003 uf, 1.6 KV disc-caps attached at 90° intervals around grid ring

  • iti suppressor consists of

    2

    iti suppressor consists of 7 turns of #12 wire on 47 ), 2 watt resistor

Characteristic

  • Amplification Factor

    0.075

    Amplification Factor. . . . .. ... .. ... ... 20 D.C. Grid Current, . ., < v v o i s v e v e e e e n s 0.075 Ampares

  • Note

    3

    Note 3: Twa TV high voltage filter capacitors in parallel.