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Tube cross-reference

1L6 alternatives, equivalents, and replacements

Review exact electrical variations and directional substitutions recorded for the 1L6 voltage radio detector converter. Compare core specifications and verify every restriction before using a replacement.

Replacement tubes for 1L6

The following tubes are recorded as possible replacements for 1L6. This direction does not establish that 1L6 can replace them.

1U6

Voltage Radio Detector Converter

Receiving Tubes

The database records 1U6 as a possible replacement for1L6.

  • Parallel heater circuits only
SpecificationOriginal tubeReplacement
Tube typeVoltage Radio Detector ConverterVoltage Radio Detector Converter
ConstructionHeptodeHeptode
Base7DC7DC
SocketB7GB7G
Base pins77
Sections11
Heater voltage1.4 V1.4 V
Heater current0.05 A0.025 A

Where 1L6 can be used as the replacement

In these recorded relationships, 1L6 is the replacement tube. The listed original tubes are not automatically suitable as replacements for 1L6.

1U6

Voltage Radio Detector Converter

Receiving Tubes

The database records 1L6 as a possible replacement for1U6.

  • Parallel heater circuits only
Specification1L6 replacementOriginal tube
Tube typeVoltage Radio Detector ConverterVoltage Radio Detector Converter
ConstructionHeptodeHeptode
Base7DC7DC
SocketB7GB7G
Base pins77
Sections11
Heater voltage1.4 V1.4 V
Heater current0.05 A0.025 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 1L6 specifications →