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Tube cross-reference

5EH8 alternatives, equivalents, and replacements

Review exact electrical variations and directional substitutions recorded for the 5EH8 voltage radio detector converter. Compare core specifications and verify every restriction before using a replacement.

Replacement tubes for 5EH8

The following tubes are recorded as possible replacements for 5EH8. This direction does not establish that 5EH8 can replace them.

5X8

Voltage Radio Detector Converter

Receiving Tubes

The database records 5X8 as a possible replacement for5EH8.

  • Not suitable for all circuits
SpecificationOriginal tubeReplacement
Tube typeVoltage Radio Detector ConverterVoltage Radio Detector Converter
ConstructionPentode-TriodePentode-Triode
BaseNot recorded9AK
SocketB9AB9A
Base pins99
Sections22
Heater voltage4.7 V4.7 V
Heater current0.6 A0.6 A

Where 5EH8 can be used as the replacement

In these recorded relationships, 5EH8 is the replacement tube. The listed original tubes are not automatically suitable as replacements for 5EH8.

5X8

Voltage Radio Detector Converter

Receiving Tubes

The database records 5EH8 as a possible replacement for5X8.

  • Not suitable for all circuits
Specification5EH8 replacementOriginal tube
Tube typeVoltage Radio Detector ConverterVoltage Radio Detector Converter
ConstructionPentode-TriodePentode-Triode
BaseNot recorded9AK
SocketB9AB9A
Base pins99
Sections22
Heater voltage4.7 V4.7 V
Heater current0.6 A0.6 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 5EH8 specifications →