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Tube Tinker — Electron Tube Database

Tube cross-reference

EA76 alternatives, equivalents, and replacements

Review exact electrical variations and directional substitutions recorded for the EA76 diode (not rectifier). Compare core specifications and verify every restriction before using a replacement.

Exact variations of EA76

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.

  • 6489

    Rectifier - Half Wave

    Base
    6489
    Socket
    Not recorded
    Base pins
    Not recorded
    Sections
    1
    Heater voltage
    6.3 V
    Heater current
    0.15 A
  • CV469

    NEW (being researched)

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

Replacement tubes for EA76

The following tubes are recorded as possible replacements for EA76. This direction does not establish that EA76 can replace them.

6489

Rectifier - Half Wave

American To Foreign

The database records 6489 as a possible replacement forEA76.

No special restrictions are recorded for this substitution.

SpecificationOriginal tubeReplacement
Tube typeDiode (NOT rectifier)Rectifier - Half Wave
ConstructionDiodeRectifier
BaseNot recorded6489
SocketNot recordedNot recorded
Base pins5Not recorded
Sections11
Heater voltage6.3 V6.3 V
Heater current0.15 A0.15 A

Where EA76 can be used as the replacement

In these recorded relationships, EA76 is the replacement tube. The listed original tubes are not automatically suitable as replacements for EA76.

6489

Rectifier - Half Wave

Foreign To American

The database records EA76 as a possible replacement for6489.

No special restrictions are recorded for this substitution.

SpecificationEA76 replacementOriginal tube
Tube typeDiode (NOT rectifier)Rectifier - Half Wave
ConstructionDiodeRectifier
BaseNot recorded6489
SocketNot recordedNot recorded
Base pins5Not recorded
Sections11
Heater voltage6.3 V6.3 V
Heater current0.15 A0.15 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 EA76 specifications →