6ZH2B

Russian indirectly heated voltage-amplifier pentode; typical anode 120 V, 5.5 mA; printed transconductance 3.6 Ma/V.

Directly heatedCold cathodeCommon cathodeDissimilar

Sections: 1
Base: -
Socket code: -
Base pins: -
Nominal heater: 6.3 V / 200 mA

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: 200 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 0

Pentode

X-ray radiationInterelectrode capacitances

Transconductance: 0.0036 S

Typical anode 120 V, current 0.0055 A, datasheet anode power 0.9 W (not promoted as maximum); printed transconductance 3.6 Ma/V, units require validation.

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

2026 Russian Receiving

Published operating points and test conditions from this source.

SECTION 0

Pentode

Characteristic

Plate Voltage
120 V
Typical anode voltage
5.5
5.5 mA
Typical anode current
8750
120 V
Typical screen-grid voltage

Other

Heater/filament voltage
6.3 V
Heater voltage
Heater/filament current
200 mA
Heater current