4061A

Professional RF pentode for higher-voltage, higher-dissipation amplifier service, rated around 10 W plate dissipation and approximately 500 V plate voltage.

Directly heatedCold cathodeCommon cathodeDissimilar

Sections: 1
Base: -
Socket code: MEDIUM7
Base pins: 7
Nominal heater: 6.3 V / 800 mA

Description

4061A is a rF pentode. The Standard Valves sheet publishes construction, electrical constants, limiting conditions, and applicable operating data.

Socket description

Medium 7-contact transmitting-tube base

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base: -
Socket code: MEDIUM7
Base pins: 7
Nominal heater voltage: 6.3 V
Nominal heater current: 800 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: 200000 Ω
Amplification factor: 500
Max plate voltage: 500 V
Max screen voltage: 250 V
Max plate dissipation: 10 W
Max screen dissipation: 8 W

Published ratings and characteristics promoted from approved 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

Pentode

Other

Grid-anode capacitance
0.02 pF
Published capacitance
Input capacitance
10 pF
Published capacitance
Output capacitance
10 pF
Published capacitance