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Tube cross-reference

34CD3 alternatives, equivalents, and replacements

Review exact electrical variations and directional substitutions recorded for the 34CD3 rectifier - damper diode. Compare core specifications and verify every restriction before using a replacement.

Exact variations of 34CD3

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.

  • 34CE3

    Rectifier - Damper Diode

    Base
    12GK
    Socket
    B12C
    Base pins
    12
    Sections
    1
    Heater voltage
    34.6 V
    Heater current
    0.45 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 34CD3 specifications →