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Tube cross-reference

6BL7GT alternatives, equivalents, and replacements

Review exact electrical variations and directional substitutions recorded for the 6BL7GT power - tv vertical output. Compare core specifications and verify every restriction before using a replacement.

Replacement tubes for 6BL7GT

The following tubes are recorded as possible replacements for 6BL7GT. This direction does not establish that 6BL7GT can replace them.

6BL7GTA

Power - TV Vertical Output

Receiving Tubes

The database records 6BL7GTA as a possible replacement for6BL7GT.

No special restrictions are recorded for this substitution.

SpecificationOriginal tubeReplacement
Tube typePower - TV Vertical OutputPower - TV Vertical Output
ConstructionTriode-TriodeTriode-Triode
Base8BDNot recorded
SocketIOIO
Base pins88
Sections22
Heater voltage6.3 V6.3 V
Heater current1.5 A1.5 A
6BX7GT

Power - TV Vertical Output

Receiving Tubes

The database records 6BX7GT as a possible replacement for6BL7GT.

No special restrictions are recorded for this substitution.

SpecificationOriginal tubeReplacement
Tube typePower - TV Vertical OutputPower - TV Vertical Output
ConstructionTriode-TriodeTriode-Triode
Base8BD8BD
SocketIOIO
Base pins88
Sections22
Heater voltage6.3 V6.3 V
Heater current1.5 A1.5 A
6DN7

Power - TV Vertical Output

Receiving Tubes

The database records 6DN7 as a possible replacement for6BL7GT.

No special restrictions are recorded for this substitution.

SpecificationOriginal tubeReplacement
Tube typePower - TV Vertical OutputPower - TV Vertical Output
ConstructionTriode-TriodeTriode-Triode
Base8BD8BD
SocketIOIO
Base pins88
Sections22
Heater voltage6.3 V6.3 V
Heater current1.5 A0.9 A

Where 6BL7GT can be used as the replacement

In these recorded relationships, 6BL7GT is the replacement tube. The listed original tubes are not automatically suitable as replacements for 6BL7GT.

6BL7GTA

Power - TV Vertical Output

Receiving Tubes

The database records 6BL7GT as a possible replacement for6BL7GTA.

No special restrictions are recorded for this substitution.

Specification6BL7GT replacementOriginal tube
Tube typePower - TV Vertical OutputPower - TV Vertical Output
ConstructionTriode-TriodeTriode-Triode
Base8BDNot recorded
SocketIOIO
Base pins88
Sections22
Heater voltage6.3 V6.3 V
Heater current1.5 A1.5 A
6BX7GT

Power - TV Vertical Output

Receiving Tubes

The database records 6BL7GT as a possible replacement for6BX7GT.

No special restrictions are recorded for this substitution.

Specification6BL7GT replacementOriginal tube
Tube typePower - TV Vertical OutputPower - TV Vertical Output
ConstructionTriode-TriodeTriode-Triode
Base8BD8BD
SocketIOIO
Base pins88
Sections22
Heater voltage6.3 V6.3 V
Heater current1.5 A1.5 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 6BL7GT specifications →