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Tube cross-reference

12GA6 alternatives, equivalents, and replacements

Review exact electrical variations and directional substitutions recorded for the 12GA6 voltage pentode or tetrode (under 100v). Compare core specifications and verify every restriction before using a replacement.

Exact variations of 12GA6

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.

  • 12AD6

    Voltage Pentode or Tetrode (under 100V)

    Base
    7CH
    Socket
    B7G
    Base pins
    7
    Sections
    1
    Heater voltage
    12.6 V
    Heater current
    0.15 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 12GA6 specifications →