Tube cross-reference
KTW63 alternatives, equivalents, and replacements
Review exact electrical variations and directional substitutions recorded for the KTW63 voltage tetrode. Compare core specifications and verify every restriction before using a replacement.
Replacement tubes for KTW63
The following tubes are recorded as possible replacements for KTW63. This direction does not establish that KTW63 can replace them.
Voltage Radio Detector Converter
The database records 6J7GT as a possible replacement forKTW63.
No special restrictions are recorded for this substitution.
| Specification | Original tube | Replacement |
|---|---|---|
| Tube type | Voltage Tetrode | Voltage Radio Detector Converter |
| Construction | Tetrode | Pentode |
| Base | Not recorded | 7R |
| Socket | IO | IO |
| Base pins | 8 | 7 |
| Sections | 1 | 1 |
| Heater voltage | 6.3 V | 6.3 V |
| Heater current | 0.3 A | 0.3 A |
Where KTW63 can be used as the replacement
In these recorded relationships, KTW63 is the replacement tube. The listed original tubes are not automatically suitable as replacements for KTW63.
Voltage Radio Detector Converter
The database records KTW63 as a possible replacement for6J7GT.
No special restrictions are recorded for this substitution.
| Specification | KTW63 replacement | Original tube |
|---|---|---|
| Tube type | Voltage Tetrode | Voltage Radio Detector Converter |
| Construction | Tetrode | Pentode |
| Base | Not recorded | 7R |
| Socket | IO | IO |
| Base pins | 8 | 7 |
| Sections | 1 | 1 |
| Heater voltage | 6.3 V | 6.3 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 KTW63 specifications →