Tube cross-reference
X63 alternatives, equivalents, and replacements
Review exact electrical variations and directional substitutions recorded for the X63 voltage radio detector converter. Compare core specifications and verify every restriction before using a replacement.
Replacement tubes for X63
The following tubes are recorded as possible replacements for X63. This direction does not establish that X63 can replace them.
Voltage Radio Detector Converter
The database records 6A8 as a possible replacement forX63.
No special restrictions are recorded for this substitution.
| Specification | Original tube | Replacement |
|---|---|---|
| Tube type | Voltage Radio Detector Converter | Voltage Radio Detector Converter |
| Construction | Heptode | Heptode |
| Base | Not recorded | 8A |
| Socket | IO | IO |
| Base pins | 8 | 8 |
| Sections | 1 | 1 |
| Heater voltage | 6.3 V | 6.3 V |
| Heater current | Not recorded | 0.3 A |
Where X63 can be used as the replacement
In these recorded relationships, X63 is the replacement tube. The listed original tubes are not automatically suitable as replacements for X63.
Voltage Radio Detector Converter
The database records X63 as a possible replacement for6A8.
No special restrictions are recorded for this substitution.
| Specification | X63 replacement | Original tube |
|---|---|---|
| Tube type | Voltage Radio Detector Converter | Voltage Radio Detector Converter |
| Construction | Heptode | Heptode |
| Base | Not recorded | 8A |
| Socket | IO | IO |
| Base pins | 8 | 8 |
| Sections | 1 | 1 |
| Heater voltage | 6.3 V | 6.3 V |
| Heater current | Not recorded | 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 X63 specifications →