6K4PER

Long-life, high-reliability Russian remote-cutoff RF pentode for RF and IF amplification with automatic gain control. It combines extended-control operation with reliability-oriented construction for sustained professional service.

Directly heatedCold cathodeCommon cathodeDissimilar

Sections: 1
Base: -
Socket code: B9A
Base pins: 9
Nominal heater: 6.3 V / 270 mA

Description

Long-life/high-reliability remote-cutoff RF pentode variant for IF/RF amplification and AGC service. Extracted and translated from the complete Russian entry corresponding to the PDF filename; neighboring page-break fragments were excluded.

Socket description

Small-button Noval 9-contact

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base: -
Socket code: B9A
Base pins: 9
Nominal heater voltage: 6.3 V
Nominal heater current: 270 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: 450000 Ω
Transconductance: 0.0044 S
Max plate voltage: 300 V
Max screen voltage: 195 V
Max cathode current: 20 mA

Values promoted from the complete filename-matched Russian entry only.

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

1981 Russian Tubes Katsnelson and Larionov

Published operating points and test conditions from this source.

SECTION 1

Pentode

Characteristic

Plate current
10.3 mA
Translated from Russian source; filename-matched entry only
Screen current maximum
5.5 mA
Translated from Russian source; filename-matched entry only
Transconductance
4.4 mA/V
Translated from Russian source; filename-matched entry only
Input resistance at 60 MHz minimum
3.5 kOhm
Translated from Russian source; filename-matched entry only
Input capacitance
6.4 pF
Translated from Russian source; filename-matched entry only
Output capacitance
6.7 pF
Translated from Russian source; filename-matched entry only
Transfer capacitance maximum
0.0035 pF
Translated from Russian source; filename-matched entry only
Service life minimum
2000 h
Translated from Russian source; filename-matched entry only