S6F33

Special-quality screened high-frequency pentode with a short-cutoff suppressor-grid characteristic for modulation, gating, and variable-reactance applications. Rugged construction supports these specialized control functions under shock and vibration.

Directly heatedCold cathodeCommon cathodeDissimilar

Sections: 1
Base: -
Socket code: -
Base pins: -
Nominal heater: 6.3 V / 350 mA

Description

Special-quality screened high-frequency pentode with short-cutoff suppressor-grid characteristic for modulation, gating, and variable-reactance applications under shock and vibration.

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: 350 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

Max plate voltage: 300 V
Max screen voltage: 300 V
Max plate dissipation: 3 W
Max screen dissipation: 1.5 W

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

1961 AEI Industrial Valves

Published operating points and test conditions from this source.

SECTION 1

Pentode

Other

Maximum no-current anode voltage
550 V
Ia=0
Maximum no-current screen voltage
400 V
Ig2=0
Maximum shock
500 g
ShortDuration
Maximum acceleration
2.5 g
Continuous

Capacitance

Control-grid to earth capacitance
7.55 pF
Anode to earth capacitance
4.55 pF
Anode-control-grid capacitance
0.015 pF
Maximum

Data set 02

1961 Associated Electrical Industries

Published operating points and test conditions from this source.

SECTION 1

Pentode

Other

Maximum no-current anode voltage
550 V
Ia=0
Maximum no-current screen voltage
400 V
Ig2=0
Maximum shock
500 g
ShortDuration
Maximum acceleration
2.5 g
Continuous

Capacitance

Control-grid to earth capacitance
7.55 pF
Anode to earth capacitance
4.55 pF
Anode-control-grid capacitance
0.015 pF
Maximum