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Tube cross-reference

12AG6 alternatives, equivalents, and replacements

Review exact electrical variations and directional substitutions recorded for the 12AG6 voltage pentode or tetrode (under 100v). Compare core specifications and verify every restriction before using a replacement.

Replacement tubes for 12AG6

The following tubes are recorded as possible replacements for 12AG6. This direction does not establish that 12AG6 can replace them.

12AD6

Voltage Pentode or Tetrode (under 100V)

Receiving Tubes

The database records 12AD6 as a possible replacement for12AG6.

No special restrictions are recorded for this substitution.

SpecificationOriginal tubeReplacement
Tube typeVoltage Pentode or Tetrode (under 100V)Voltage Pentode or Tetrode (under 100V)
ConstructionHeptodeHeptode
Base7CH7CH
SocketB7GB7G
Base pins77
Sections11
Heater voltage12.6 V12.6 V
Heater current0.15 A0.15 A

Where 12AG6 can be used as the replacement

In these recorded relationships, 12AG6 is the replacement tube. The listed original tubes are not automatically suitable as replacements for 12AG6.

12AD6

Voltage Pentode or Tetrode (under 100V)

Receiving Tubes

The database records 12AG6 as a possible replacement for12AD6.

No special restrictions are recorded for this substitution.

Specification12AG6 replacementOriginal tube
Tube typeVoltage Pentode or Tetrode (under 100V)Voltage Pentode or Tetrode (under 100V)
ConstructionHeptodeHeptode
Base7CH7CH
SocketB7GB7G
Base pins77
Sections11
Heater voltage12.6 V12.6 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 12AG6 specifications →