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Tube cross-reference

6AQ5A alternatives, equivalents, and replacements

Review exact electrical variations and directional substitutions recorded for the 6AQ5A power - tv vertical output. Compare core specifications and verify every restriction before using a replacement.

Replacement tubes for 6AQ5A

The following tubes are recorded as possible replacements for 6AQ5A. This direction does not establish that 6AQ5A can replace them.

6AG5

Voltage Pentode - Sharp Cutoff (single)

Receiving Tubes

The database records 6AG5 as a possible replacement for6AQ5A.

  • Parallel heater circuits only
  • No-warmup series circuits only
SpecificationOriginal tubeReplacement
Tube typePower - TV Vertical OutputVoltage Pentode - Sharp Cutoff (single)
ConstructionBeamPowerPentode
Base7BZE7-1
SocketB7GB7G
Base pins77
Sections11
Heater voltage6.3 V6.3 V
Heater current0.45 A0.3 A
6BM5

Power - Pentode Single (NOT beam) (under 10W)

Receiving Tubes

The database records 6BM5 as a possible replacement for6AQ5A.

  • Parallel heater circuits only
  • No-warmup series circuits only
SpecificationOriginal tubeReplacement
Tube typePower - TV Vertical OutputPower - Pentode Single (NOT beam) (under 10W)
ConstructionBeamPowerPentode
Base7BZ7BZ
SocketB7GB9A
Base pins79
Sections11
Heater voltage6.3 V6.3 V
Heater current0.45 A0.45 A
6HG5

Power - Beam (NOT sweep)

Receiving Tubes

The database records 6HG5 as a possible replacement for6AQ5A.

No special restrictions are recorded for this substitution.

SpecificationOriginal tubeReplacement
Tube typePower - TV Vertical OutputPower - Beam (NOT sweep)
ConstructionBeamPowerBeamPower
Base7BZNot recorded
SocketB7GB7G
Base pins77
Sections11
Heater voltage6.3 V6.3 V
Heater current0.45 A0.45 A

Where 6AQ5A can be used as the replacement

In these recorded relationships, 6AQ5A is the replacement tube. The listed original tubes are not automatically suitable as replacements for 6AQ5A.

6669

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

Communications And Special Purpose Tubes

The database records 6AQ5A as a possible replacement for6669.

No special restrictions are recorded for this substitution.

Specification6AQ5A replacementOriginal tube
Tube typePower - TV Vertical OutputPower - Beam Single (NOT sweep) (under 10W)
ConstructionBeamPowerBeamPower
Base7BZ7BZ
SocketB7GB7G
Base pins77
Sections11
Heater voltage6.3 V6.3 V
Heater current0.45 A0.45 A
6AQ5

Power - Beam (NOT sweep)

Receiving Tubes

The database records 6AQ5A as a possible replacement for6AQ5.

No special restrictions are recorded for this substitution.

Specification6AQ5A replacementOriginal tube
Tube typePower - TV Vertical OutputPower - Beam (NOT sweep)
ConstructionBeamPowerBeamPower
Base7BZ7BZ
SocketB7GB7G
Base pins77
Sections11
Heater voltage6.3 V6.3 V
Heater current0.45 A0.45 A
6BM5

Power - Pentode Single (NOT beam) (under 10W)

Receiving Tubes

The database records 6AQ5A as a possible replacement for6BM5.

No special restrictions are recorded for this substitution.

Specification6AQ5A replacementOriginal tube
Tube typePower - TV Vertical OutputPower - Pentode Single (NOT beam) (under 10W)
ConstructionBeamPowerPentode
Base7BZ7BZ
SocketB7GB9A
Base pins79
Sections11
Heater voltage6.3 V6.3 V
Heater current0.45 A0.45 A
6DS5

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

Receiving Tubes

The database records 6AQ5A as a possible replacement for6DS5.

  • Parallel heater circuits only
Specification6AQ5A replacementOriginal tube
Tube typePower - TV Vertical OutputPower - Beam Single (NOT sweep) (under 10W)
ConstructionBeamPowerBeamPower
Base7BZ7BZ
SocketB7GB7G
Base pins77
Sections11
Heater voltage6.3 V6.3 V
Heater current0.45 A0.8 A
6HG5

Power - Beam (NOT sweep)

Receiving Tubes

The database records 6AQ5A as a possible replacement for6HG5.

No special restrictions are recorded for this substitution.

Specification6AQ5A replacementOriginal tube
Tube typePower - TV Vertical OutputPower - Beam (NOT sweep)
ConstructionBeamPowerBeamPower
Base7BZNot recorded
SocketB7GB7G
Base pins77
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 6AQ5A specifications →