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

1D4

Directly heated power amplifier pentode; low-power classification provisional pending dissipation rating.

Directly heatedCold cathodeCommon cathodeDissimilar
Sections
1
Base
-
Socket code
-
Base pins
5
Nominal heater
2 V / 240 mA

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base
-
Socket code
-
Base pins
5
Nominal heater voltage
2 V
Nominal heater current
240 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 0

Pentode

X-ray radiationInterelectrode capacitances

No fixed ratings are recorded for this section.

Power amplifier pentode; manufacturer directs to 1L5-G for maximum ratings and operating conditions. Cgp 1 pF, input 8 pF, output 11 pF.

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

9999 Mixed 1000

Published operating points and test conditions from this source.

SECTION 0

Pentode

Characteristics

  • Grid-to-plate capacitance

    1 pF

    Grid to plate

  • Input capacitance

    8 pF

    Input capacitance

  • Output capacitance

    11 pF

    Output capacitance