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

3JC171G

Heavy-filament triode for high-power electronic service. Available source material does not establish a narrower functional application confidently.

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

Description

The 3JC171G is a ceramic-metal high-mu forced-air-cooled power triode intended for zero-bias class-B audio- and radio-frequency amplifier service.

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
7.5 V
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
Amplification factor
160
Max plate voltage
5000 V
Max plate dissipation
3000 W
Max grid dissipation
225 W

Published maximum ratings and characteristics audited; remaining values retained densely in parameter table.

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

1962 ITT

Published operating points and test conditions from this source.

SECTION 1

Triode

Other

  • The [1]

    3 W

    The 3JC/171G is a ceramic/metal, high mu, forced-air-cooled power triode intended

  • The [2]

    171 W

    The 3JC/171G is a ceramic/metal, high mu, forced-air-cooled power triode intended

  • Ry, (plate to plate) ()]

    2720

    Ry, (plate to plate) ()] 2720

  • Note

    1 W

    Note 1. Nominal drive power is one-half peak power.

  • ary to direct at least

    3

    ary to direct at least 3cfm into the inner and outer filament terminals. ion if the anode is cooled by air blow

  • Anode-to-~Base Air Flow (Note

    2

    Anode-to-~Base Air Flow (Note 2)

  • Note

    2

    Note 2. When air is supplied in the anode-to-base direction, a

  • minimum of

    3

    minimum of 3cfm must be directed into the filament-stem struct-

  • \j k

    1

    \j k. 1 Filament

  • hepfuglpluglingtungusddond %

    2

    hepfuglpluglingtungusddond % 2 Filament

  • ~+

    3

    ~+ 3 Grid

  • E o D— —-H

    4

    E o D— —-H 4 Anode

  • Published value

    300 A

    . 3,00 Grid Current