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Tube Tinker — Electron Tube Database

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5641 alternatives, equivalents, and replacements

Review exact electrical variations and directional substitutions recorded for the 5641 rectifier - half wave. Compare core specifications and verify every restriction before using a replacement.

Exact variations of 5641

These designations belong to the same electrical variation group. Their names may differ because of international standards, manufacturing tolerances, or materials, but they are recorded as electrically equivalent—not merely substitutes.

  • CV473

    NEW (being researched)

    Base
    Not recorded
    Socket
    Not recorded
    Base pins
    Not recorded
    Sections
    1
    Heater voltage
    Not recorded
    Heater current
    Not recorded
  • EY70

    Rectifier - Half Wave

    Base
    Not recorded
    Socket
    Not recorded
    Base pins
    Not recorded
    Sections
    1
    Heater voltage
    6.3 V
    Heater current
    0.3 A

Replacement tubes for 5641

The following tubes are recorded as possible replacements for 5641. This direction does not establish that 5641 can replace them.

EY70

Rectifier - Half Wave

Foreign To American

The database records EY70 as a possible replacement for5641.

No special restrictions are recorded for this substitution.

SpecificationOriginal tubeReplacement
Tube typeRectifier - Half WaveRectifier - Half Wave
ConstructionRectifierRectifier
Base6CJNot recorded
SocketNot recordedNot recorded
Base pins6Not recorded
Sections11
Heater voltage6.3 V6.3 V
Heater current0.45 A0.3 A

Verify before substituting

Matching a base or heater voltage is not enough to prove that two tubes are interchangeable. Check pin connections, heater current, maximum ratings, bias requirements, warm-up behavior, and the equipment manufacturer’s service documentation before making a substitution.

View the complete 5641 specifications →