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Rectifier - Full Wave ·Rectifier-Rectifier

6BT4

Indirectly heated full-wave rectifier for receiving-equipment power supplies. Its 6.3 V heater construction provides approximately 90 mA DC output, with additional operating ratings retained in the underlying source-derived record.

Directly heatedCold cathodeCommon cathodeDissimilar
Sections
2
Base
OCTAL
Socket code
IO
Base pins
8
Nominal heater
6.3 V / 600 mA

Description

Indirectly heated full-wave rectifier. The supplied Philips/JETEC/RTMA sheet was read for heater data, section ratings, characteristics, operating conditions, and capacitances, with repeated identical sections compressed only where the locked workflow allows.

Socket description

International Octal

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base
OCTAL
Socket code
IO
Base pins
8
Nominal heater voltage
6.3 V
Nominal heater current
600 mA
Parallel heater voltage
-
Parallel heater current
-
Series capable
No

OCTAL - Terminal pinout

Electrical assignments shared by every tube using this base designation.

No verified pinout is recorded for this base designation.

Section ratings

2 physical sections, each with unique specifications.

Section 1

Rectifier

X-ray radiationInterelectrode capacitances
Rectifier nominal output current
90 mA
Rectifier max heater-cathode voltage
500 V

Representative of two electrically identical full-wave rectifier paths.

Section 2

Rectifier

X-ray radiationInterelectrode capacitances
Rectifier nominal output current
90 mA
Rectifier max heater-cathode voltage
500 V

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

1999 Philips 0-D

Published operating points and test conditions from this source.

SECTION 1

Rectifier

Characteristics

  • Heater voltage

    6.3 V

  • Heater current

    600 mA

Other

  • Transformer secondary voltage per plate

    350 V RMS

  • Maximum DC output current

    90 mA

  • Maximum filter input capacitance

    50 uF

  • Effective plate supply impedance per plate

    300 ohm

  • Maximum peak heater-cathode voltage

    500 V