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Tube cross-reference

6CA5 alternatives, equivalents, and replacements

Review exact electrical variations and directional substitutions recorded for the 6CA5 power - beam single (not sweep) (under 10w). Compare core specifications and verify every restriction before using a replacement.

Exact variations of 6CA5

These designations belong to the same electrical variation group. Their names may differ because of international standards, manufacturing tolerances, or materials, but they are recorded as electrically equivalent—not merely substitutes.

  • 6EH5

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

    Base
    7CV
    Socket
    B9A
    Base pins
    9
    Sections
    1
    Heater voltage
    6.3 V
    Heater current
    1.2 A

Replacement tubes for 6CA5

The following tubes are recorded as possible replacements for 6CA5. This direction does not establish that 6CA5 can replace them.

6AS5

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

Receiving Tubes

The database records 6AS5 as a possible replacement for6CA5.

  • Parallel heater circuits only
SpecificationOriginal tubeReplacement
Tube typePower - Beam Single (NOT sweep) (under 10W)Power - Beam Single (NOT sweep) (under 10W)
ConstructionBeamPowerBeamPower
Base7CV7
SocketB7GB7G
Base pins77
Sections11
Heater voltage6.3 V6.3 V
Heater current1.2 A0.8 A
6EH5

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

Receiving Tubes

The database records 6EH5 as a possible replacement for6CA5.

No special restrictions are recorded for this substitution.

SpecificationOriginal tubeReplacement
Tube typePower - Beam Single (NOT sweep) (under 10W)Power - Pentode Single (NOT beam) (under 10W)
ConstructionBeamPowerPentode
Base7CV7CV
SocketB7GB9A
Base pins79
Sections11
Heater voltage6.3 V6.3 V
Heater current1.2 A1.2 A

Where 6CA5 can be used as the replacement

In these recorded relationships, 6CA5 is the replacement tube. The listed original tubes are not automatically suitable as replacements for 6CA5.

6AS5

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

Receiving Tubes

The database records 6CA5 as a possible replacement for6AS5.

  • Parallel heater circuits only
Specification6CA5 replacementOriginal tube
Tube typePower - Beam Single (NOT sweep) (under 10W)Power - Beam Single (NOT sweep) (under 10W)
ConstructionBeamPowerBeamPower
Base7CV7
SocketB7GB7G
Base pins77
Sections11
Heater voltage6.3 V6.3 V
Heater current1.2 A0.8 A
6EH5

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

Receiving Tubes

The database records 6CA5 as a possible replacement for6EH5.

No special restrictions are recorded for this substitution.

Specification6CA5 replacementOriginal tube
Tube typePower - Beam Single (NOT sweep) (under 10W)Power - Pentode Single (NOT beam) (under 10W)
ConstructionBeamPowerPentode
Base7CV7CV
SocketB7GB9A
Base pins79
Sections11
Heater voltage6.3 V6.3 V
Heater current1.2 A1.2 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 6CA5 specifications →