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Tube cross-reference

2HQ5 alternatives, equivalents, and replacements

Review exact electrical variations and directional substitutions recorded for the 2HQ5 voltage - triode (single high frequency). Compare core specifications and verify every restriction before using a replacement.

Replacement tubes for 2HQ5

The following tubes are recorded as possible replacements for 2HQ5. This direction does not establish that 2HQ5 can replace them.

2HA5

Voltage - Triode (single high frequency)

Receiving Tubes

The database records 2HA5 as a possible replacement for2HQ5.

No special restrictions are recorded for this substitution.

SpecificationOriginal tubeReplacement
Tube typeVoltage - Triode (single high frequency)Voltage - Triode (single high frequency)
ConstructionTriodeTriode
Base7FP7GM
SocketB7GB7G
Base pins77
Sections11
Heater voltage2.35 V2.4 V
Heater current0.6 A0.6 A
2HM5

Voltage - Triode (single high frequency)

Receiving Tubes

The database records 2HM5 as a possible replacement for2HQ5.

No special restrictions are recorded for this substitution.

SpecificationOriginal tubeReplacement
Tube typeVoltage - Triode (single high frequency)Voltage - Triode (single high frequency)
ConstructionTriodeTriode
Base7FP7GM
SocketB7GB7G
Base pins77
Sections11
Heater voltage2.35 V2.4 V
Heater current0.6 A0.6 A

Where 2HQ5 can be used as the replacement

In these recorded relationships, 2HQ5 is the replacement tube. The listed original tubes are not automatically suitable as replacements for 2HQ5.

2HA5

Voltage - Triode (single high frequency)

Receiving Tubes

The database records 2HQ5 as a possible replacement for2HA5.

No special restrictions are recorded for this substitution.

Specification2HQ5 replacementOriginal tube
Tube typeVoltage - Triode (single high frequency)Voltage - Triode (single high frequency)
ConstructionTriodeTriode
Base7FP7GM
SocketB7GB7G
Base pins77
Sections11
Heater voltage2.35 V2.4 V
Heater current0.6 A0.6 A
2HM5

Voltage - Triode (single high frequency)

Receiving Tubes

The database records 2HQ5 as a possible replacement for2HM5.

No special restrictions are recorded for this substitution.

Specification2HQ5 replacementOriginal tube
Tube typeVoltage - Triode (single high frequency)Voltage - Triode (single high frequency)
ConstructionTriodeTriode
Base7FP7GM
SocketB7GB7G
Base pins77
Sections11
Heater voltage2.35 V2.4 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 2HQ5 specifications →