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Tube cross-reference

LFL200 alternatives, equivalents, and replacements

Review exact electrical variations and directional substitutions recorded for the LFL200 voltage dual pentode. Compare core specifications and verify every restriction before using a replacement.

Exact variations of LFL200

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.

  • 11Y9

    Voltage Dual Pentode

    Base
    Not recorded
    Socket
    Not recorded
    Base pins
    Not recorded
    Sections
    2
    Heater voltage
    11 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 LFL200 specifications →