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Tube Tinker — Electron Tube Database

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ECF82 alternatives, equivalents, and replacements

Review exact electrical variations and directional substitutions recorded for the ECF82 voltage radio detector converter. Compare core specifications and verify every restriction before using a replacement.

Exact variations of ECF82

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.

  • 6U8

    Voltage Radio Detector Converter

    Base
    9AE
    Socket
    B9A
    Base pins
    9
    Sections
    2
    Heater voltage
    6.3 V
    Heater current
    0.45 A

Replacement tubes for ECF82

The following tubes are recorded as possible replacements for ECF82. This direction does not establish that ECF82 can replace them.

6U8

Voltage Radio Detector Converter

American To Foreign

The database records 6U8 as a possible replacement forECF82.

No special restrictions are recorded for this substitution.

SpecificationOriginal tubeReplacement
Tube typeVoltage Radio Detector ConverterVoltage Radio Detector Converter
ConstructionPentode-TriodePentode-Triode
BaseB9A9AE
SocketB9AB9A
Base pins99
Sections22
Heater voltage6.3 V6.3 V
Heater current0.45 A0.45 A

Where ECF82 can be used as the replacement

In these recorded relationships, ECF82 is the replacement tube. The listed original tubes are not automatically suitable as replacements for ECF82.

6U8

Voltage Radio Detector Converter

Foreign To American

The database records ECF82 as a possible replacement for6U8.

No special restrictions are recorded for this substitution.

SpecificationECF82 replacementOriginal tube
Tube typeVoltage Radio Detector ConverterVoltage Radio Detector Converter
ConstructionPentode-TriodePentode-Triode
BaseB9A9AE
SocketB9AB9A
Base pins99
Sections22
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 ECF82 specifications →