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Voltage Radio Detector Converter ·Hexode-Triode

1I2P

Russian directly heated triode-hexode frequency converter for low-power battery superheterodyne receivers. A 1.2 V, 60 mA oxide-coated filament powers separate triode oscillator and hexode mixer sections.

Directly heatedCold cathodeCommon cathodeDissimilar
Sections
2
Base
-
Socket code
-
Base pins
-
Nominal heater
1.2 V / 60 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
1.2 V
Nominal heater current
60 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
0.001 S
Amplification factor
25
Max plate dissipation
0.25 W

Russian 1I2P triode oscillator section of directly heated triode-hexode. Filament 1.2 V 60 mA. Typical plate 60 V at 1.2 mA, amplification factor 25 and gm 0.001 S; published anode power 0.25 W. Plate voltage is an operating point, not a specified maximum. Separate hexode mixer is section 2.

Section 2

Hexode

X-ray radiationInterelectrode capacitances
Transconductance
0.00075 S
Max plate dissipation
0.3 W

Russian 1I2P directly heated hexode frequency-converter mixer section physically distinct from triode oscillator. Typical plate voltage 60 V, anode current 1.05 mA, screens grids 2/4 at 45 V, transconductance 0.75 mA/V (0.00075 S) and printed anode power 0.3 W. These voltages are nominal operating points rather than confirmed maximum ratings; section maximum voltage fields remain unpopulated. Shared 1.2 V 60 mA filament.

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

2026 Russian Receiving

Published operating points and test conditions from this source.

SECTION 1

Triode

Other

  • Plate Voltage

    60 V

  • Plate Current

    1.2 mA

SECTION 2

Hexode

Other

  • Plate Voltage

    60 V

  • Plate Current

    1.05 mA