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Tube cross-reference

25CD6GB alternatives, equivalents, and replacements

Review exact electrical variations and directional substitutions recorded for the 25CD6GB power - tv horizontal output (sweep). Compare core specifications and verify every restriction before using a replacement.

Replacement tubes for 25CD6GB

The following tubes are recorded as possible replacements for 25CD6GB. This direction does not establish that 25CD6GB can replace them.

21EX6

Power - TV Horizontal Output (sweep)

Receiving Tubes

The database records 21EX6 as a possible replacement for25CD6GB.

No special restrictions are recorded for this substitution.

SpecificationOriginal tubeReplacement
Tube typePower - TV Horizontal Output (sweep)Power - TV Horizontal Output (sweep)
ConstructionBeamPowerBeamPower
BaseNot recordedNot recorded
SocketIOB9E
Base pins812
Sections11
Heater voltage25 V21.5 V
Heater current0.6 A0.6 A

Where 25CD6GB can be used as the replacement

In these recorded relationships, 25CD6GB is the replacement tube. The listed original tubes are not automatically suitable as replacements for 25CD6GB.

21EX6

Power - TV Horizontal Output (sweep)

Receiving Tubes

The database records 25CD6GB as a possible replacement for21EX6.

No special restrictions are recorded for this substitution.

Specification25CD6GB replacementOriginal tube
Tube typePower - TV Horizontal Output (sweep)Power - TV Horizontal Output (sweep)
ConstructionBeamPowerBeamPower
BaseNot recordedNot recorded
SocketIOB9E
Base pins812
Sections11
Heater voltage25 V21.5 V
Heater current0.6 A0.6 A
25CD6G

Power - TV Horizontal Output (sweep)

Receiving Tubes

The database records 25CD6GB as a possible replacement for25CD6G.

No special restrictions are recorded for this substitution.

Specification25CD6GB replacementOriginal tube
Tube typePower - TV Horizontal Output (sweep)Power - TV Horizontal Output (sweep)
ConstructionBeamPowerBeamPower
BaseNot recorded5BT
SocketIONot recorded
Base pins8Not recorded
Sections11
Heater voltage25 V25 V
Heater current0.6 A0.6 A
25CD6GA

Power - TV Horizontal Output (sweep)

Receiving Tubes

The database records 25CD6GB as a possible replacement for25CD6GA.

No special restrictions are recorded for this substitution.

Specification25CD6GB replacementOriginal tube
Tube typePower - TV Horizontal Output (sweep)Power - TV Horizontal Output (sweep)
ConstructionBeamPowerBeamPower
BaseNot recorded5BT
SocketIONot recorded
Base pins8Not recorded
Sections11
Heater voltage25 V25 V
Heater current0.6 A0.6 A
25DN6

Power - TV Horizontal Output (sweep)

Receiving Tubes

The database records 25CD6GB as a possible replacement for25DN6.

No special restrictions are recorded for this substitution.

Specification25CD6GB replacementOriginal tube
Tube typePower - TV Horizontal Output (sweep)Power - TV Horizontal Output (sweep)
ConstructionBeamPowerBeamPower
BaseNot recordedB8-118
SocketIOB9A
Base pins88
Sections11
Heater voltage25 V25 V
Heater current0.6 A0.6 A
25EC6

Power - TV Horizontal Output (sweep)

Receiving Tubes

The database records 25CD6GB as a possible replacement for25EC6.

No special restrictions are recorded for this substitution.

Specification25CD6GB replacementOriginal tube
Tube typePower - TV Horizontal Output (sweep)Power - TV Horizontal Output (sweep)
ConstructionBeamPowerBeamPower
BaseNot recordedB8-110
SocketIOB9A
Base pins88
Sections11
Heater voltage25 V25 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 25CD6GB specifications →