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Tube Tinker — Electron Tube Database

Tube cross-reference

EY70 alternatives, equivalents, and replacements

Review exact electrical variations and directional substitutions recorded for the EY70 rectifier - half wave. Compare core specifications and verify every restriction before using a replacement.

Exact variations of EY70

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.

  • 5641

    Rectifier - Half Wave

    Base
    6CJ
    Socket
    Not recorded
    Base pins
    6
    Sections
    1
    Heater voltage
    6.3 V
    Heater current
    0.45 A
  • CV473

    NEW (being researched)

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

Where EY70 can be used as the replacement

In these recorded relationships, EY70 is the replacement tube. The listed original tubes are not automatically suitable as replacements for EY70.

5641

Rectifier - Half Wave

Foreign To American

The database records EY70 as a possible replacement for5641.

No special restrictions are recorded for this substitution.

SpecificationEY70 replacementOriginal tube
Tube typeRectifier - Half WaveRectifier - Half Wave
ConstructionRectifierRectifier
BaseNot recorded6CJ
SocketNot recordedNot recorded
Base pinsNot recorded6
Sections11
Heater voltage6.3 V6.3 V
Heater current0.3 A0.45 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 EY70 specifications →