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Tube cross-reference

25Z6GT alternatives, equivalents, and replacements

Review exact electrical variations and directional substitutions recorded for the 25Z6GT rectifier - full wave. Compare core specifications and verify every restriction before using a replacement.

Replacement tubes for 25Z6GT

The following tubes are recorded as possible replacements for 25Z6GT. This direction does not establish that 25Z6GT can replace them.

25Z6

Rectifier - Full Wave

Receiving Tubes

The database records 25Z6 as a possible replacement for25Z6GT.

No special restrictions are recorded for this substitution.

SpecificationOriginal tubeReplacement
Tube typeRectifier - Full WaveRectifier - Full Wave
ConstructionRectifier-RectifierRectifier-Rectifier
BaseB7-77O
SocketIOIO
Base pins77
Sections22
Heater voltage25 V25 V
Heater current0.3 A0.3 A
25Z6G

Rectifier - Full Wave

Receiving Tubes

The database records 25Z6G as a possible replacement for25Z6GT.

No special restrictions are recorded for this substitution.

SpecificationOriginal tubeReplacement
Tube typeRectifier - Full WaveRectifier - Full Wave
ConstructionRectifier-RectifierRectifier-Rectifier
BaseB7-7Not recorded
SocketIOIO
Base pins7Not recorded
Sections22
Heater voltage25 V25 V
Heater current0.3 A0.3 A

Where 25Z6GT can be used as the replacement

In these recorded relationships, 25Z6GT is the replacement tube. The listed original tubes are not automatically suitable as replacements for 25Z6GT.

25Z6

Rectifier - Full Wave

Receiving Tubes

The database records 25Z6GT as a possible replacement for25Z6.

No special restrictions are recorded for this substitution.

Specification25Z6GT replacementOriginal tube
Tube typeRectifier - Full WaveRectifier - Full Wave
ConstructionRectifier-RectifierRectifier-Rectifier
BaseB7-77O
SocketIOIO
Base pins77
Sections22
Heater voltage25 V25 V
Heater current0.3 A0.3 A
25Z6G

Rectifier - Full Wave

Receiving Tubes

The database records 25Z6GT as a possible replacement for25Z6G.

No special restrictions are recorded for this substitution.

Specification25Z6GT replacementOriginal tube
Tube typeRectifier - Full WaveRectifier - Full Wave
ConstructionRectifier-RectifierRectifier-Rectifier
BaseB7-7Not recorded
SocketIOIO
Base pins7Not recorded
Sections22
Heater voltage25 V25 V
Heater current0.3 A0.3 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 25Z6GT specifications →