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Tube cross-reference

6AN4 alternatives, equivalents, and replacements

Review exact electrical variations and directional substitutions recorded for the 6AN4 voltage - triode (single high frequency). Compare core specifications and verify every restriction before using a replacement.

Replacement tubes for 6AN4

The following tubes are recorded as possible replacements for 6AN4. This direction does not establish that 6AN4 can replace them.

6AF4

Voltage - Triode (single high frequency)

Receiving Tubes

The database records 6AF4 as a possible replacement for6AN4.

  • Not suitable for all circuits
SpecificationOriginal tubeReplacement
Tube typeVoltage - Triode (single high frequency)Voltage - Triode (single high frequency)
ConstructionTriodeTriode
Base7DKE7-1
SocketB7GB7G
Base pins77
Sections11
Heater voltage6.3 V6.3 V
Heater current0.225 A0.225 A
6AF4A

Voltage - Triode (single high frequency)

Receiving Tubes

The database records 6AF4A as a possible replacement for6AN4.

  • Not suitable for all circuits
SpecificationOriginal tubeReplacement
Tube typeVoltage - Triode (single high frequency)Voltage - Triode (single high frequency)
ConstructionTriodeTriode
Base7DKE7-1
SocketB7GB7G
Base pins77
Sections11
Heater voltage6.3 V6.3 V
Heater current0.225 A0.225 A
6T4

Voltage - Triode (single high frequency)

Receiving Tubes

The database records 6T4 as a possible replacement for6AN4.

  • Not suitable for all circuits
SpecificationOriginal tubeReplacement
Tube typeVoltage - Triode (single high frequency)Voltage - Triode (single high frequency)
ConstructionTriodeTriode
Base7DK7DK
SocketB7GB7G
Base pins77
Sections11
Heater voltage6.3 V6.3 V
Heater current0.225 A0.225 A

Where 6AN4 can be used as the replacement

In these recorded relationships, 6AN4 is the replacement tube. The listed original tubes are not automatically suitable as replacements for 6AN4.

6AF4

Voltage - Triode (single high frequency)

Receiving Tubes

The database records 6AN4 as a possible replacement for6AF4.

  • Not suitable for all circuits
Specification6AN4 replacementOriginal tube
Tube typeVoltage - Triode (single high frequency)Voltage - Triode (single high frequency)
ConstructionTriodeTriode
Base7DKE7-1
SocketB7GB7G
Base pins77
Sections11
Heater voltage6.3 V6.3 V
Heater current0.225 A0.225 A
6AF4A

Voltage - Triode (single high frequency)

Receiving Tubes

The database records 6AN4 as a possible replacement for6AF4A.

  • Not suitable for all circuits
Specification6AN4 replacementOriginal tube
Tube typeVoltage - Triode (single high frequency)Voltage - Triode (single high frequency)
ConstructionTriodeTriode
Base7DKE7-1
SocketB7GB7G
Base pins77
Sections11
Heater voltage6.3 V6.3 V
Heater current0.225 A0.225 A
6T4

Voltage - Triode (single high frequency)

Receiving Tubes

The database records 6AN4 as a possible replacement for6T4.

  • Not suitable for all circuits
Specification6AN4 replacementOriginal tube
Tube typeVoltage - Triode (single high frequency)Voltage - Triode (single high frequency)
ConstructionTriodeTriode
Base7DK7DK
SocketB7GB7G
Base pins77
Sections11
Heater voltage6.3 V6.3 V
Heater current0.225 A0.225 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 6AN4 specifications →