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Voltage Pentode ·Pentode

MF6

Directly heated Telefunken RF pentode for VHF amplification down to approximately 1.5-meter wavelength with modest battery consumption.

Directly heatedCold cathodeCommon cathodeDissimilar
Sections
1
Base
-
Socket code
-
Base pins
-
Nominal heater
1.9 V / 95 mA

Description

Telefunken MF6 directly heated RF pentode intended for high-frequency amplification down to approximately 1.5 m wavelength.

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
1.9 V
Nominal heater current
95 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
1200000 Ω
Transconductance
0.00095 S
Max plate voltage
200 V
Max screen voltage
120 V
Max plate dissipation
1 W
Max screen dissipation
0.3 W
Max cathode current
5 mA

Published ratings and characteristics were promoted when unambiguous; additional operating values are preserved in TUBE_SECTION_PARAMETER.

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

194X Wehrmacht Rohren

Published operating points and test conditions from this source.

SECTION 1

Pentode

Capacitance

  • Input capacitance

    3 pF

  • Output capacitance

    3.1 pF

  • Grid-plate capacitance

    0.01 pF

Other

  • Plate voltage

    150 V

    RF amplifier

  • Screen voltage

    75 V

    RF amplifier

  • Plate current

    2 mA

    RF amplifier