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Tube Tinker — Electron Tube Database

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6BH8 alternatives, equivalents, and replacements

Review exact electrical variations and directional substitutions recorded for the 6BH8 voltage radio detector converter. Compare core specifications and verify every restriction before using a replacement.

Exact variations of 6BH8

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.

  • 6AU8

    Voltage Triode Pentode

    Base
    9DX
    Socket
    B9A
    Base pins
    9
    Sections
    2
    Heater voltage
    6.3 V
    Heater current
    0.45 A

Replacement tubes for 6BH8

The following tubes are recorded as possible replacements for 6BH8. This direction does not establish that 6BH8 can replace them.

6AU8

Voltage Triode Pentode

Receiving Tubes

The database records 6AU8 as a possible replacement for6BH8.

No special restrictions are recorded for this substitution.

SpecificationOriginal tubeReplacement
Tube typeVoltage Radio Detector ConverterVoltage Triode Pentode
ConstructionPentode-TriodePentode-Triode
Base9DX9DX
SocketB9AB9A
Base pins99
Sections22
Heater voltage6.3 V6.3 V
Heater current0.6 A0.45 A
6AU8A

Voltage Triode Pentode

Receiving Tubes

The database records 6AU8A as a possible replacement for6BH8.

No special restrictions are recorded for this substitution.

SpecificationOriginal tubeReplacement
Tube typeVoltage Radio Detector ConverterVoltage Triode Pentode
ConstructionPentode-TriodePentode-Triode
Base9DX9DX
SocketB9AB9A
Base pins99
Sections22
Heater voltage6.3 V6.3 V
Heater current0.6 A0.6 A
6AW8

Voltage Triode Pentode

Receiving Tubes

The database records 6AW8 as a possible replacement for6BH8.

No special restrictions are recorded for this substitution.

SpecificationOriginal tubeReplacement
Tube typeVoltage Radio Detector ConverterVoltage Triode Pentode
ConstructionPentode-TriodePentode-Triode
Base9DX9DX
SocketB9AB9A
Base pins99
Sections22
Heater voltage6.3 V6.3 V
Heater current0.6 A0.6 A
6AW8A

Voltage Pentode - Sharp Cutoff (single)

Receiving Tubes

The database records 6AW8A as a possible replacement for6BH8.

No special restrictions are recorded for this substitution.

SpecificationOriginal tubeReplacement
Tube typeVoltage Radio Detector ConverterVoltage Pentode - Sharp Cutoff (single)
ConstructionPentode-TriodePentode-Triode
Base9DX9DX
SocketB9AB9A
Base pins99
Sections22
Heater voltage6.3 V6.3 V
Heater current0.6 A0.6 A
6BA8

Voltage Pentode - Sharp Cutoff (single)

Receiving Tubes

The database records 6BA8 as a possible replacement for6BH8.

No special restrictions are recorded for this substitution.

SpecificationOriginal tubeReplacement
Tube typeVoltage Radio Detector ConverterVoltage Pentode - Sharp Cutoff (single)
ConstructionPentode-TriodePentode-Triode
Base9DXNot recorded
SocketB9AB9A
Base pins99
Sections22
Heater voltage6.3 V6.3 V
Heater current0.6 A0.6 A
6BA8A

Voltage Pentode - Sharp Cutoff (single)

Receiving Tubes

The database records 6BA8A as a possible replacement for6BH8.

No special restrictions are recorded for this substitution.

SpecificationOriginal tubeReplacement
Tube typeVoltage Radio Detector ConverterVoltage Pentode - Sharp Cutoff (single)
ConstructionPentode-TriodePentode-Triode
Base9DX9DX
SocketB9AB9A
Base pins99
Sections22
Heater voltage6.3 V6.3 V
Heater current0.6 A0.6 A

Where 6BH8 can be used as the replacement

In these recorded relationships, 6BH8 is the replacement tube. The listed original tubes are not automatically suitable as replacements for 6BH8.

6AU8

Voltage Triode Pentode

Receiving Tubes

The database records 6BH8 as a possible replacement for6AU8.

No special restrictions are recorded for this substitution.

Specification6BH8 replacementOriginal tube
Tube typeVoltage Radio Detector ConverterVoltage Triode Pentode
ConstructionPentode-TriodePentode-Triode
Base9DX9DX
SocketB9AB9A
Base pins99
Sections22
Heater voltage6.3 V6.3 V
Heater current0.6 A0.45 A
6AU8A

Voltage Triode Pentode

Receiving Tubes

The database records 6BH8 as a possible replacement for6AU8A.

No special restrictions are recorded for this substitution.

Specification6BH8 replacementOriginal tube
Tube typeVoltage Radio Detector ConverterVoltage Triode Pentode
ConstructionPentode-TriodePentode-Triode
Base9DX9DX
SocketB9AB9A
Base pins99
Sections22
Heater voltage6.3 V6.3 V
Heater current0.6 A0.6 A
6BA8

Voltage Pentode - Sharp Cutoff (single)

Receiving Tubes

The database records 6BH8 as a possible replacement for6BA8.

No special restrictions are recorded for this substitution.

Specification6BH8 replacementOriginal tube
Tube typeVoltage Radio Detector ConverterVoltage Pentode - Sharp Cutoff (single)
ConstructionPentode-TriodePentode-Triode
Base9DXNot recorded
SocketB9AB9A
Base pins99
Sections22
Heater voltage6.3 V6.3 V
Heater current0.6 A0.6 A
6BA8A

Voltage Pentode - Sharp Cutoff (single)

Receiving Tubes

The database records 6BH8 as a possible replacement for6BA8A.

No special restrictions are recorded for this substitution.

Specification6BH8 replacementOriginal tube
Tube typeVoltage Radio Detector ConverterVoltage Pentode - Sharp Cutoff (single)
ConstructionPentode-TriodePentode-Triode
Base9DX9DX
SocketB9AB9A
Base pins99
Sections22
Heater voltage6.3 V6.3 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 6BH8 specifications →