6K8P

Russian pentode designed for high-frequency voltage amplification. Manufacturer documentation places it in RF small-signal service rather than power-output operation, without sufficiently explicit cutoff terminology for further classification.

Directly heatedCold cathodeCommon cathodeDissimilar

Sections: 1
Base: -
Socket code: -
Base pins: -
Nominal heater: 6.3 V / 300 mA

Description

Pentode for high-frequency voltage amplification. Extracted and translated from the complete Russian entry corresponding to the PDF filename; neighboring page-break fragments were excluded.

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: 6.3 V
Nominal heater current: 300 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: 70000 Ω
Transconductance: 0.00185 S
Max plate dissipation: 0.5 W
Max screen dissipation: 0.5 W
Max cathode current: 15 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
2.5 mA
Translated from Russian source; filename-matched entry only
Transconductance
1.85 mA/V
Translated from Russian source; filename-matched entry only
Plate resistance
70 kOhm
Translated from Russian source; filename-matched entry only
Maximum plate dissipation
0.5 W
Translated from Russian source; filename-matched entry only
Maximum screen dissipation
0.5 W
Translated from Russian source; filename-matched entry only
Maximum cathode current
15 mA
Translated from Russian source; filename-matched entry only
Service life
1500 h
Translated from Russian source; filename-matched entry only