Tube cross-reference
KT32 alternatives, equivalents, and replacements
Review exact electrical variations and directional substitutions recorded for the KT32 power - tetrode (not beam). Compare core specifications and verify every restriction before using a replacement.
Replacement tubes for KT32
The following tubes are recorded as possible replacements for KT32. This direction does not establish that KT32 can replace them.
Power - TV Vertical Output
The database records 25W6GT as a possible replacement forKT32.
No special restrictions are recorded for this substitution.
| Specification | Original tube | Replacement |
|---|---|---|
| Tube type | Power - Tetrode (NOT beam) | Power - TV Vertical Output |
| Construction | Tetrode | BeamPower |
| Base | Not recorded | 7AC |
| Socket | IO | IO |
| Base pins | 8 | 7 |
| Sections | 1 | 1 |
| Heater voltage | 26 V | 25 V |
| Heater current | 0.3 A | 0.3 A |
Where KT32 can be used as the replacement
In these recorded relationships, KT32 is the replacement tube. The listed original tubes are not automatically suitable as replacements for KT32.
Power - Beam (NOT sweep)
The database records KT32 as a possible replacement for25L6.
No special restrictions are recorded for this substitution.
| Specification | KT32 replacement | Original tube |
|---|---|---|
| Tube type | Power - Tetrode (NOT beam) | Power - Beam (NOT sweep) |
| Construction | Tetrode | BeamPower |
| Base | Not recorded | 7AC |
| Socket | IO | IO |
| Base pins | 8 | Not recorded |
| Sections | 1 | 1 |
| Heater voltage | 26 V | 25 V |
| Heater current | 0.3 A | 0.3 A |
Power - TV Vertical Output
The database records KT32 as a possible replacement for25W6GT.
No special restrictions are recorded for this substitution.
| Specification | KT32 replacement | Original tube |
|---|---|---|
| Tube type | Power - Tetrode (NOT beam) | Power - TV Vertical Output |
| Construction | Tetrode | BeamPower |
| Base | Not recorded | 7AC |
| Socket | IO | IO |
| Base pins | 8 | 7 |
| Sections | 1 | 1 |
| Heater voltage | 26 V | 25 V |
| Heater current | 0.3 A | 0.3 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 KT32 specifications →