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Tube Tinker — Electron Tube Database

Tube cross-reference

17DM4 alternatives, equivalents, and replacements

Review exact electrical variations and directional substitutions recorded for the 17DM4 rectifier - damper diode. Compare core specifications and verify every restriction before using a replacement.

Exact variations of 17DM4

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.

  • 17D4

    Rectifier - Damper Diode

    Base
    Not recorded
    Socket
    B7G
    Base pins
    5
    Sections
    1
    Heater voltage
    16.8 V
    Heater current
    0.45 A

Replacement tubes for 17DM4

The following tubes are recorded as possible replacements for 17DM4. This direction does not establish that 17DM4 can replace them.

17D4A

Rectifier - Damper Diode

Receiving Tubes

The database records 17D4A as a possible replacement for17DM4.

No special restrictions are recorded for this substitution.

SpecificationOriginal tubeReplacement
Tube typeRectifier - Damper DiodeRectifier - Damper Diode
ConstructionRectifierRectifier
Base4CGNot recorded
SocketIOB7G
Base pins99
Sections11
Heater voltage16.8 V16.8 V
Heater current0.3 A0.3 A
17DM4A

Rectifier - Damper Diode

Receiving Tubes

The database records 17DM4A as a possible replacement for17DM4.

No special restrictions are recorded for this substitution.

SpecificationOriginal tubeReplacement
Tube typeRectifier - Damper DiodeRectifier - Damper Diode
ConstructionRectifierRectifier
Base4CG4CG
SocketIOIO
Base pins99
Sections11
Heater voltage16.8 V16.8 V
Heater current0.3 A0.45 A

Where 17DM4 can be used as the replacement

In these recorded relationships, 17DM4 is the replacement tube. The listed original tubes are not automatically suitable as replacements for 17DM4.

17AX4GT

Rectifier - Damper Diode

Receiving Tubes

The database records 17DM4 as a possible replacement for17AX4GT.

No special restrictions are recorded for this substitution.

Specification17DM4 replacementOriginal tube
Tube typeRectifier - Damper DiodeRectifier - Damper Diode
ConstructionRectifierRectifier
Base4CG4CG
SocketIOIO
Base pins96
Sections11
Heater voltage16.8 V16.8 V
Heater current0.3 A0.45 A
17AX4GTA

Rectifier - Damper Diode

Receiving Tubes

The database records 17DM4 as a possible replacement for17AX4GTA.

No special restrictions are recorded for this substitution.

Specification17DM4 replacementOriginal tube
Tube typeRectifier - Damper DiodeRectifier - Damper Diode
ConstructionRectifierRectifier
Base4CG4CG
SocketIOIO
Base pins98
Sections11
Heater voltage16.8 V16.8 V
Heater current0.3 A0.45 A
17D4

Rectifier - Damper Diode

Receiving Tubes

The database records 17DM4 as a possible replacement for17D4.

No special restrictions are recorded for this substitution.

Specification17DM4 replacementOriginal tube
Tube typeRectifier - Damper DiodeRectifier - Damper Diode
ConstructionRectifierRectifier
Base4CGNot recorded
SocketIOB7G
Base pins95
Sections11
Heater voltage16.8 V16.8 V
Heater current0.3 A0.45 A
17D4A

Rectifier - Damper Diode

Receiving Tubes

The database records 17DM4 as a possible replacement for17D4A.

No special restrictions are recorded for this substitution.

Specification17DM4 replacementOriginal tube
Tube typeRectifier - Damper DiodeRectifier - Damper Diode
ConstructionRectifierRectifier
Base4CGNot recorded
SocketIOB7G
Base pins99
Sections11
Heater voltage16.8 V16.8 V
Heater current0.3 A0.3 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 17DM4 specifications →