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Tube Tinker — Electron Tube Database

Tube cross-reference

6J6A alternatives, equivalents, and replacements

Review exact electrical variations and directional substitutions recorded for the 6J6A voltage - dual triode (similar high frequency). Compare core specifications and verify every restriction before using a replacement.

Replacement tubes for 6J6A

The following tubes are recorded as possible replacements for 6J6A. This direction does not establish that 6J6A can replace them.

6J6

Voltage - Dual Triode (similar high frequency)

Receiving Tubes

The database records 6J6 as a possible replacement for6J6A.

  • Parallel heater circuits only
  • No-warmup series circuits only
SpecificationOriginal tubeReplacement
Tube typeVoltage - Dual Triode (similar high frequency)Voltage - Dual Triode (similar high frequency)
ConstructionTriode-TriodeTriode-Triode
Base7BF7BF
SocketB7GB7G
Base pins77
Sections22
Heater voltage6.3 V6.3 V
Heater current0.45 A0.45 A

Where 6J6A can be used as the replacement

In these recorded relationships, 6J6A is the replacement tube. The listed original tubes are not automatically suitable as replacements for 6J6A.

6J6

Voltage - Dual Triode (similar high frequency)

Receiving Tubes

The database records 6J6A as a possible replacement for6J6.

No special restrictions are recorded for this substitution.

Specification6J6A replacementOriginal tube
Tube typeVoltage - Dual Triode (similar high frequency)Voltage - Dual Triode (similar high frequency)
ConstructionTriode-TriodeTriode-Triode
Base7BF7BF
SocketB7GB7G
Base pins77
Sections22
Heater voltage6.3 V6.3 V
Heater current0.45 A0.45 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 6J6A specifications →