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Power - Triode ·Triode

6C33C

Low-mu high-current power triode intended for electronic voltage-regulator series-pass service. Its low plate resistance and substantial cathode-current capability make it suited to controlling regulated DC supplies rather than conventional voltage amplification.

Directly heatedCold cathodeCommon cathodeDissimilar
Sections
1
Base
-
Socket code
-
Base pins
-
Nominal heater
6.3 V / 6.6 A

Description

High-current indirectly heated power triode used as a pass tube in electronic voltage regulators.

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
6.6 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

Triode

X-ray radiationInterelectrode capacitances
Transconductance
0.04 S
Max plate voltage
400 V
Max plate dissipation
60 W
Max cathode current
600 mA

Published ratings and characteristics promoted from the approved source.

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.

No source-specific operating conditions are recorded.