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Voltage Pentode - Remote Cutoff (single) ·Pentode

RENS1894

Telefunken variable-mu RF/IF pentode for gain-controlled receiver stages using low-current series heaters.

Directly heatedCold cathodeCommon cathodeDissimilar
Sections
1
Base
-
Socket code
-
Base pins
-
Nominal heater
4 V / 180 mA

Description

Variable-mu RF/IF pentode for gain-controlled receiver stages.

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
4 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

1 physical section, each with unique specifications.

Section 1

Pentode

X-ray radiationInterelectrode capacitances
Max plate voltage
250 V
Max screen voltage
100 V

Published historical Telefunken data promoted where legible; filename-designated tube kept distinct from surrounding handbook entries.

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

1959 Telefunken

Published operating points and test conditions from this source.

SECTION 1

Pentode

Application

  • Application

    RF / IF amplifier

Characteristics

  • Cutoff characteristic

    Variable-mu / exponential

Other

  • Maximum control voltage magnitude

    35 V