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Tube Tinker — Electron Tube Database

Tube cross-reference

17Z3 alternatives, equivalents, and replacements

Review exact electrical variations and directional substitutions recorded for the 17Z3 rectifier - damper diode. Compare core specifications and verify every restriction before using a replacement.

Exact variations of 17Z3

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.

  • PY81

    Rectifier - Damper Diode

    Base
    Not recorded
    Socket
    B9A
    Base pins
    9
    Sections
    1
    Heater voltage
    17 V
    Heater current
    0.3 A
  • PY83

    Rectifier - Damper Diode

    Base
    Not recorded
    Socket
    B9A
    Base pins
    Not recorded
    Sections
    1
    Heater voltage
    20 V
    Heater current
    0.3 A

Replacement tubes for 17Z3

The following tubes are recorded as possible replacements for 17Z3. This direction does not establish that 17Z3 can replace them.

PY800

Rectifier - Damper Diode

Foreign To American

The database records PY800 as a possible replacement for17Z3.

No special restrictions are recorded for this substitution.

SpecificationOriginal tubeReplacement
Tube typeRectifier - Damper DiodeRectifier - Damper Diode
ConstructionRectifierRectifier
Base9CBNot recorded
SocketB9AB9A
Base pins9Not recorded
Sections11
Heater voltage17 V19 V
Heater current0.3 A0.3 A
PY801

Rectifier - Damper Diode

Foreign To American

The database records PY801 as a possible replacement for17Z3.

No special restrictions are recorded for this substitution.

SpecificationOriginal tubeReplacement
Tube typeRectifier - Damper DiodeRectifier - Damper Diode
ConstructionRectifierRectifier
Base9CBNot recorded
SocketB9ANot recorded
Base pins9Not recorded
Sections11
Heater voltage17 V19 V
Heater current0.3 A0.3 A
PY81

Rectifier - Damper Diode

Foreign To American

The database records PY81 as a possible replacement for17Z3.

No special restrictions are recorded for this substitution.

SpecificationOriginal tubeReplacement
Tube typeRectifier - Damper DiodeRectifier - Damper Diode
ConstructionRectifierRectifier
Base9CBNot recorded
SocketB9AB9A
Base pins99
Sections11
Heater voltage17 V17 V
Heater current0.3 A0.3 A
PY83

Rectifier - Damper Diode

Foreign To American

The database records PY83 as a possible replacement for17Z3.

No special restrictions are recorded for this substitution.

SpecificationOriginal tubeReplacement
Tube typeRectifier - Damper DiodeRectifier - Damper Diode
ConstructionRectifierRectifier
Base9CBNot recorded
SocketB9AB9A
Base pins9Not recorded
Sections11
Heater voltage17 V20 V
Heater current0.3 A0.3 A
U193

Rectifier - Damper Diode

Foreign To American

The database records U193 as a possible replacement for17Z3.

No special restrictions are recorded for this substitution.

SpecificationOriginal tubeReplacement
Tube typeRectifier - Damper DiodeRectifier - Damper Diode
ConstructionRectifierRectifier
Base9CBNot recorded
SocketB9AB9A
Base pins9Not recorded
Sections11
Heater voltage17 V19 V
Heater current0.3 A0.3 A

Where 17Z3 can be used as the replacement

In these recorded relationships, 17Z3 is the replacement tube. The listed original tubes are not automatically suitable as replacements for 17Z3.

PY800

Rectifier - Damper Diode

American To Foreign

The database records 17Z3 as a possible replacement forPY800.

No special restrictions are recorded for this substitution.

Specification17Z3 replacementOriginal tube
Tube typeRectifier - Damper DiodeRectifier - Damper Diode
ConstructionRectifierRectifier
Base9CBNot recorded
SocketB9AB9A
Base pins9Not recorded
Sections11
Heater voltage17 V19 V
Heater current0.3 A0.3 A
PY801

Rectifier - Damper Diode

American To Foreign

The database records 17Z3 as a possible replacement forPY801.

No special restrictions are recorded for this substitution.

Specification17Z3 replacementOriginal tube
Tube typeRectifier - Damper DiodeRectifier - Damper Diode
ConstructionRectifierRectifier
Base9CBNot recorded
SocketB9ANot recorded
Base pins9Not recorded
Sections11
Heater voltage17 V19 V
Heater current0.3 A0.3 A
PY81

Rectifier - Damper Diode

American To Foreign

The database records 17Z3 as a possible replacement forPY81.

No special restrictions are recorded for this substitution.

Specification17Z3 replacementOriginal tube
Tube typeRectifier - Damper DiodeRectifier - Damper Diode
ConstructionRectifierRectifier
Base9CBNot recorded
SocketB9AB9A
Base pins99
Sections11
Heater voltage17 V17 V
Heater current0.3 A0.3 A
PY83

Rectifier - Damper Diode

American To Foreign

The database records 17Z3 as a possible replacement forPY83.

No special restrictions are recorded for this substitution.

Specification17Z3 replacementOriginal tube
Tube typeRectifier - Damper DiodeRectifier - Damper Diode
ConstructionRectifierRectifier
Base9CBNot recorded
SocketB9AB9A
Base pins9Not recorded
Sections11
Heater voltage17 V20 V
Heater current0.3 A0.3 A
U193

Rectifier - Damper Diode

American To Foreign

The database records 17Z3 as a possible replacement forU193.

No special restrictions are recorded for this substitution.

Specification17Z3 replacementOriginal tube
Tube typeRectifier - Damper DiodeRectifier - Damper Diode
ConstructionRectifierRectifier
Base9CBNot recorded
SocketB9AB9A
Base pins9Not recorded
Sections11
Heater voltage17 V19 V
Heater current0.3 A0.3 A
V153

Specialized - Klystron

American To Foreign

The database records 17Z3 as a possible replacement forV153.

No special restrictions are recorded for this substitution.

Specification17Z3 replacementOriginal tube
Tube typeRectifier - Damper DiodeSpecialized - Klystron
ConstructionRectifierKlystron
Base9CBNot recorded
SocketB9ANot recorded
Base pins9Not recorded
Sections11
Heater voltage17 V6.3 V
Heater current0.3 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 17Z3 specifications →