6223

Rugged subminiature sharp-cutoff RF pentode developed by Sonotone for circuits subjected to severe shock and vibration. Eight flexible leads, 6.3 V/175 mA heater, and controlled electrical tolerances support dependable high-frequency amplification.

Directly heatedCold cathodeCommon cathodeDissimilar

Sections: 1
Base: -
Socket code: -
Base pins: 8
Nominal heater: 6.3 V / 175 mA

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base: -
Socket code: -
Base pins: 8
Nominal heater voltage: 6.3 V
Nominal heater current: 175 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

Transconductance: 0.005 S
Max plate voltage: 165 V
Max screen voltage: 155 V
Max plate dissipation: 1.1 W
Max screen dissipation: 0.55 W
Max cathode current: 16.5 mA

Sonotone 6223 sharp-cutoff ruggedized subminiature RF pentode with coated unipotential cathode and eight flexible leads (lead 1 g1, 2/4/8 cathode-g3-shield, 3/6 heater, 5 plate, 7 screen g2). Heater 6.3 V 175 mA. Absolute maximum ratings: DC plate 165 V, screen 155 V, plate dissipation 1.1 W, g2 input 0.55 W, DC cathode 16.5 mA. Typical at Va 100 V and cathode resistor 150 ohms: plate 7.5 mA, transconductance 5000 µmhos (0.005 S). Plate resistance 0.175 MΩ is explicitly MINIMUM, not typical nominal; left promoted rp NULL. Shielded capacitances grid-plate 0.015 pF, input 4.2 pF, output 3.4 pF. Withstands high mechanical impact/shock and vibration; claimed max impact 600g, prolonged vibration rated 2.5g in detailed explanatory note; source front-page OCR ambiguous 25g. Operation time about 20 s.

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

9999 Mixed G 2000

Published operating points and test conditions from this source.

SECTION 1

Pentode

Other

Maximum plate voltage
165 V
Maximum plate voltage
Heater/filament voltage
6.3 V
Heater voltage
Heater/filament current
175 mA
Heater current