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Tube cross-reference

E235L alternatives, equivalents, and replacements

Review exact electrical variations and directional substitutions recorded for the E235L power - pentode (not beam). Compare core specifications and verify every restriction before using a replacement.

Exact variations of E235L

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.

  • 7751

    Power - Pentode (NOT beam)

    Base
    Octal / 7AC
    Socket
    IO
    Base pins
    8
    Sections
    1
    Heater voltage
    6.3 V
    Heater current
    1.2 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 E235L specifications →