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Tube Tinker — Electron Tube Database

Tube cross-reference

6489 alternatives, equivalents, and replacements

Review exact electrical variations and directional substitutions recorded for the 6489 rectifier - half wave. Compare core specifications and verify every restriction before using a replacement.

Exact variations of 6489

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.

  • CV469

    NEW (being researched)

    Base
    Not recorded
    Socket
    Not recorded
    Base pins
    Not recorded
    Sections
    1
    Heater voltage
    Not recorded
    Heater current
    Not recorded
  • EA76

    Diode (NOT rectifier)

    Base
    Not recorded
    Socket
    Not recorded
    Base pins
    5
    Sections
    1
    Heater voltage
    6.3 V
    Heater current
    0.15 A

Replacement tubes for 6489

The following tubes are recorded as possible replacements for 6489. This direction does not establish that 6489 can replace them.

EA76

Diode (NOT rectifier)

Foreign To American

The database records EA76 as a possible replacement for6489.

No special restrictions are recorded for this substitution.

SpecificationOriginal tubeReplacement
Tube typeRectifier - Half WaveDiode (NOT rectifier)
ConstructionRectifierDiode
Base6489Not recorded
SocketNot recordedNot recorded
Base pinsNot recorded5
Sections11
Heater voltage6.3 V6.3 V
Heater current0.15 A0.15 A

Where 6489 can be used as the replacement

In these recorded relationships, 6489 is the replacement tube. The listed original tubes are not automatically suitable as replacements for 6489.

EA76

Diode (NOT rectifier)

American To Foreign

The database records 6489 as a possible replacement forEA76.

No special restrictions are recorded for this substitution.

Specification6489 replacementOriginal tube
Tube typeRectifier - Half WaveDiode (NOT rectifier)
ConstructionRectifierDiode
Base6489Not recorded
SocketNot recordedNot recorded
Base pinsNot recorded5
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 6489 specifications →