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Tube Tinker — Electron Tube Database
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Voltage - Dual Triode (similar high frequency) ·Triode-Triode

12DJ8

No short description is recorded for this tube.

Directly heatedCold cathodeCommon cathodeDissimilar
Sections
2
Base
-
Socket code
-
Base pins
-
Nominal heater
12.6 V / 180 mA

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
12.6 V
Nominal heater current
180 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

2 physical sections, each with unique specifications.

Section 1

Triode

X-ray radiationInterelectrode capacitances
Transconductance
0.0125 S
Amplification factor
33
Max plate voltage
130 V
Max plate dissipation
1.8 W
Max cathode current
25 mA

Section 2

Triode

X-ray radiationInterelectrode capacitances
Transconductance
0.0125 S
Amplification factor
33
Max plate voltage
130 V
Max plate dissipation
1.8 W
Max cathode current
25 mA

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

1970 Sylvania Technical Manual

Published operating points and test conditions from this source.

SECTION 1

Triode

Other

  • Plate Voltage

    90 V

  • Grid Voltage

    -1.3 V

  • Plate Current

    15 mA

  • Grid To Plate Capacitance

    1.4 pF

SECTION 2

Triode

Other

  • Plate Voltage

    90 V

  • Grid Voltage

    -1.3 V

  • Plate Current

    15 mA

  • Grid To Plate Capacitance

    1.4 pF