Skip to main content

Voltage - Triode (single) ·Triode

4101D

Directly heated triode from the 4101-D/E/G family; related versions modify filament and lead construction to reduce sputter noise and grid-anode interaction.

Directly heatedCold cathodeCommon cathodeDissimilar
Sections
1
Base
-
Socket code
MEDIUM4BAYONET
Base pins
4
Nominal heater
4.5 V / 1 A

Description

Directly heated triode. The 4101-D, -E, -G valves have similar characteristics. The 4101-E valve has the filament designed to reduce sputter noise. The 4101-G is similar to 4101-E but has the anode lead brought out through the stem to increase the grid-anode i

Socket description

Medium 4-contact bayonet base

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base
-
Socket code
MEDIUM4BAYONET
Base pins
4
Nominal heater voltage
4.5 V
Nominal heater current
1 A
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

Triode

X-ray radiationInterelectrode capacitances
Plate resistance
6000 Ω
Transconductance
0.00107 S
Amplification factor
6
Max plate voltage
190 V
Max cathode current
12 mA

Published ratings and characteristics promoted where directly established by the datasheet.

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

1946 Standard Telephone and Cables

Published operating points and test conditions from this source.

SECTION 1

Triode

Characteristics

  • Mutual conductance

    1070 µS

    Published characteristic; normalized from mA/V

Other

  • Grid-filament capacity

    5.5 pF

    Published interelectrode capacitance

  • Maximum direct anode current

    12 mA

    Maximum safe operating rating