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Tube cross-reference

5KZ8 alternatives, equivalents, and replacements

Review exact electrical variations and directional substitutions recorded for the 5KZ8 power - beam (not sweep). Compare core specifications and verify every restriction before using a replacement.

Replacement tubes for 5KZ8

The following tubes are recorded as possible replacements for 5KZ8. This direction does not establish that 5KZ8 can replace them.

5CR8

Voltage Triode Pentode

Receiving Tubes

The database records 5CR8 as a possible replacement for5KZ8.

  • Not suitable for all circuits
SpecificationOriginal tubeReplacement
Tube typePower - Beam (NOT sweep)Voltage Triode Pentode
ConstructionBeamPower-TriodePentode-Triode
BaseNot recorded9DA
SocketNot recordedB9A
Base pins99
Sections22
Heater voltage5 V4.7 V
Heater current0.6 A0.6 A

Where 5KZ8 can be used as the replacement

In these recorded relationships, 5KZ8 is the replacement tube. The listed original tubes are not automatically suitable as replacements for 5KZ8.

5CR8

Voltage Triode Pentode

Receiving Tubes

The database records 5KZ8 as a possible replacement for5CR8.

  • Not suitable for all circuits
Specification5KZ8 replacementOriginal tube
Tube typePower - Beam (NOT sweep)Voltage Triode Pentode
ConstructionBeamPower-TriodePentode-Triode
BaseNot recorded9DA
SocketNot recordedB9A
Base pins99
Sections22
Heater voltage5 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 5KZ8 specifications →