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Power - Pentode Single (NOT beam) (under 10W) ·Pentode

PL95

Compact series-heater audio power pentode providing approximately 3 W output.

Directly heatedCold cathodeCommon cathodeDissimilar
Sections
1
Base
-
Socket code
B7G
Base pins
7
Nominal heater
4.5 V / 300 mA

Description

Small audio-frequency output pentode for low-power amplifier service.

Socket description

Miniature 7-contact

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base
-
Socket code
B7G
Base pins
7
Nominal heater voltage
4.5 V
Nominal heater current
300 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

Pentode

X-ray radiationInterelectrode capacitances
Transconductance
0.0054 S
Amplification factor
17
Max plate voltage
300 V
Max screen voltage
300 V
Max plate dissipation
6 W
Max screen dissipation
1.25 W
Max cathode current
35 mA

Published ratings and characteristics promoted where clearly stated; identical repeated sections compressed when applicable.

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

1972 Philips Receiving Tubes

Published operating points and test conditions from this source.

SECTION 1

Pentode

Characteristics

  • Heater voltage

    4.5 V

    Published nominal value

  • Heater current

    300 mA

    Published nominal value

  • Transconductance

    5400 µS

    Published operating characteristic

Other

  • Maximum plate dissipation

    6 W

    Published maximum rating

  • Audio output power

    3 W

    Published quick-reference value

Data set 02

1999 Philips E-Z

Published operating points and test conditions from this source.

SECTION 1

Pentode

Other

  • Anode current 1,

    24 mA

    Anode current 1, 24 mA

  • Transconductance S

    5.4 mA

    Transconductance S 5.4 mA/V

  • Output power Wo

    3 W

    Output power Wo 3 W

  • Heater current If

    300 mA

    Heater current If 300 mA

  • Heater voltage Vi

    4.5 V

    Heater voltage Vi 4.5V

  • Anode to all except grid No.1 Ca(gy)

    3.5 pF

    Anode to all except grid No.1 Ca(gy) 3.5 pF

  • Grid No.1 to all except anode Cgl(a)

    5.3 pF

    Grid No.1 to all except anode Cgl(a) 5.3 pF

  • Anode to grid No.1 Cagj max

    0.4 pF

    Anode to grid No.1 Cagj max. 0.4 pF

  • Grid No.1 to heater Cgif-- max

    0.2 pF

    Grid No.1 to heater Cgif-- max. 0.2 pF

  • Anode current Iy

    24 mA

    Anode current Iy 24 mA

  • Grid No.2 current Igy

    4.5 mA

    Grid No.2 current Igy 4.5 mA

  • Anode current (V; = 0) Ia 23

    24 mA

    Anode current (V; = 0) Ia 23 24 mA

  • Grid No.2 current (Vi =0) Igz 4.2

    4.5 mA

    Grid No.2 current (Vi =0) Igz 4.2 4.5 mA

  • Output power Wo 2.3

    3 W

    Output power Wo 2.3 3.0 W

  • Anode voltage Vao max

    3550 V

    Anode voltage Vao max. 3550 V

  • Grid No.2 voltage Vg2, max

    550 V

    Grid No.2 voltage Vg2, max. 550 V

  • Anode dissipation ' Wy max

    6 W

    Anode dissipation ' Wy max. 6 W

  • Cathode current Ik max

    35 mA

    Cathode current Ik max. 35 mA

  • Cathode to heater voltage Vit max

    200 V

    Cathode to heater voltage Vit max. 200 V