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6D22S

Indirectly heated power diode for half-wave B-plus rectification in high-quality audio amplifiers. Its high inverse-voltage capability and substantial current suit demanding amplifier power supplies.

Directly heatedCold cathodeCommon cathodeDissimilar

Sections: 1
Base: -
Socket code: B9D
Base pins: -
Nominal heater: 6.3 V / 1.9 A

Description

Power diode for use as a half-wave B+ rectifier in high-quality audio amplifiers.

Socket description

Magnoval 9-contact

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base: -
Socket code: B9D
Base pins: -
Nominal heater voltage: 6.3 V
Nominal heater current: 1.9 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

Rectifier

X-ray radiationInterelectrode capacitances

Max plate dissipation: 5 W
Rectifier peak inverse voltage: 6000 V
Rectifier nominal output current: 220 mA
Rectifier peak forward current: 550 mA
Rectifier max heater-cathode voltage: 600 V
Rectifier warm-up time: 30 s

Representative section row from the complete filename-matched Russian datasheet content only; neighboring-tube fragments excluded.

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

Rectifier

Characteristics

Heater voltage nominal
6.3 V
Published heater operating voltage
Heater current nominal
1.9 A
Nominal or midpoint of published heater-current tolerance
Pulse plate current at 50 V
1 A
Published
Service life
1500 h
Minimum

Capacitance

Cathode-plate capacitance
12 pF
Nominal
Cathode-heater capacitance
5 pF
Maximum

Other

Rectified current limit
220 mA
Average
Peak plate current
550 mA
Published
Plate dissipation
5 W
Published
Peak inverse voltage
6000 V
Pulse

Data set 02

199X Svetlana

Published operating points and test conditions from this source.

SECTION 1

Rectifier

Characteristic

tions and some ratings. The 6D22S features very slow warmup (
30 seconds
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Anode to cathode
12 pF
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Other

Peak inverse anode voltage
6000 V
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Peak anode current
1 A
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Anode current, continuous
300 mA
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Anode dissipation
11 W
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