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Voltage Pentode ·Pentode

KL1

Directly heated 2 V battery pentode for small-signal amplifier service with comparatively strong current capability.

Directly heatedCold cathodeCommon cathodeDissimilar
Sections
1
Base
-
Socket code
-
Base pins
-
Nominal heater
2 V / 150 mA

Description

Directly heated battery pentode. The supplied Philips datasheet provides operating characteristics, limiting values, capacitances, and application information; non-English material is represented in English in the descriptive output.

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
2 V
Nominal heater current
150 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
Plate resistance
100000 Ω
Transconductance
0.0017 S
Max plate voltage
135 V
Max screen voltage
135 V
Max plate dissipation
1.5 W
Max screen dissipation
0.3 W
Max cathode current
12 mA

Directly heated battery pentode

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

1999 Philips E-Z

Published operating points and test conditions from this source.

SECTION 1

Pentode

Characteristic

  • VI

    2 V

  • If

    150 mA

  • m m )*In-

    1 A

  • %-—1

    8 s

Other

  • Va 90

    133 V

  • Vg2 90

    100 V

  • Vgl .4,$

    4 V

  • Ia 8

    8 mA

  • Igl 1,2

    1.2 mA

  • S (Vgl -6,4)

    1.7 mA/V

  • S (Vgl m •

    4.5 V

  • RI (Vgl [1]

    -6 V

  • RI (Vgl [2]

    100000 Ω

  • RI (Vgl [1]

    4.5 V

  • RI (Vgl [2]

    80000 Ω

  • Va max

    135 V

  • Wa max

    1.5 W

  • Ik max

    12 mA

  • Vg2o mat

    135 V

  • Vgl max

    100 V

  • Vgl max (Igl [1]

    0.3 µA

  • Vgl max (Igl [2]

    -0.2 V

  • Rglf max

    1.5 MΩ

  • \fib 0,2

    0.4 W

  • Ra 14000

    14000 Ω

  • Vgl eR 3

    4.2 V