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Tube cross-reference

10LD3 alternatives, equivalents, and replacements

Review exact electrical variations and directional substitutions recorded for the 10LD3 voltage - triode (with diode, heptode or hexode). Compare core specifications and verify every restriction before using a replacement.

Replacement tubes for 10LD3

The following tubes are recorded as possible replacements for 10LD3. This direction does not establish that 10LD3 can replace them.

14L7

Voltage - Triode (with diode, heptode or hexode)

American To Foreign

The database records 14L7 as a possible replacement for10LD3.

No special restrictions are recorded for this substitution.

SpecificationOriginal tubeReplacement
Tube typeVoltage - Triode (with diode, heptode or hexode)Voltage - Triode (with diode, heptode or hexode)
ConstructionDiode-Diode-TriodeDiode-Diode-Triode
BaseNot recordedLOCTAL
SocketNot recordedB8G
Base pinsNot recorded8
Sections33
Heater voltage14 V14 V
Heater current0.1 A0.1 A

Where 10LD3 can be used as the replacement

In these recorded relationships, 10LD3 is the replacement tube. The listed original tubes are not automatically suitable as replacements for 10LD3.

14L7

Voltage - Triode (with diode, heptode or hexode)

Foreign To American

The database records 10LD3 as a possible replacement for14L7.

No special restrictions are recorded for this substitution.

Specification10LD3 replacementOriginal tube
Tube typeVoltage - Triode (with diode, heptode or hexode)Voltage - Triode (with diode, heptode or hexode)
ConstructionDiode-Diode-TriodeDiode-Diode-Triode
BaseNot recordedLOCTAL
SocketNot recordedB8G
Base pinsNot recorded8
Sections33
Heater voltage14 V14 V
Heater current0.1 A0.1 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 10LD3 specifications →