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Tube cross-reference

EL71 alternatives, equivalents, and replacements

Review exact electrical variations and directional substitutions recorded for the EL71 power - pentode single (not beam) (under 10w). Compare core specifications and verify every restriction before using a replacement.

Replacement tubes for EL71

The following tubes are recorded as possible replacements for EL71. This direction does not establish that EL71 can replace them.

5902

Power - Beam Single (NOT sweep) (under 10W)

American To Foreign

The database records 5902 as a possible replacement forEL71.

No special restrictions are recorded for this substitution.

SpecificationOriginal tubeReplacement
Tube typePower - Pentode Single (NOT beam) (under 10W)Power - Beam Single (NOT sweep) (under 10W)
ConstructionPentodeBeamPower
BaseB8D/F8DL
SocketWIRE8B7G
Base pins88
Sections11
Heater voltage6.3 V6.3 V
Heater current0.45 A0.45 A

Where EL71 can be used as the replacement

In these recorded relationships, EL71 is the replacement tube. The listed original tubes are not automatically suitable as replacements for EL71.

5902

Power - Beam Single (NOT sweep) (under 10W)

Foreign To American

The database records EL71 as a possible replacement for5902.

No special restrictions are recorded for this substitution.

SpecificationEL71 replacementOriginal tube
Tube typePower - Pentode Single (NOT beam) (under 10W)Power - Beam Single (NOT sweep) (under 10W)
ConstructionPentodeBeamPower
BaseB8D/F8DL
SocketWIRE8B7G
Base pins88
Sections11
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 EL71 specifications →