Tube cross-reference
5X3 alternatives, equivalents, and replacements
Review exact electrical variations and directional substitutions recorded for the 5X3 rectifier - full wave. Compare core specifications and verify every restriction before using a replacement.
Replacement tubes for 5X3
The following tubes are recorded as possible replacements for 5X3. This direction does not establish that 5X3 can replace them.
Rectifier - Full Wave
The database records 80 as a possible replacement for5X3.
No special restrictions are recorded for this substitution.
| Specification | Original tube | Replacement |
|---|---|---|
| Tube type | Rectifier - Full Wave | Rectifier - Full Wave |
| Construction | Rectifier-Rectifier | Rectifier-Rectifier |
| Base | Not recorded | 4C |
| Socket | Not recorded | UX4 |
| Base pins | Not recorded | 4 |
| Sections | 2 | 2 |
| Heater voltage | 5 V | 5 V |
| Heater current | 2 A | 2 A |
Rectifier - Full Wave
The database records 83V as a possible replacement for5X3.
No special restrictions are recorded for this substitution.
| Specification | Original tube | Replacement |
|---|---|---|
| Tube type | Rectifier - Full Wave | Rectifier - Full Wave |
| Construction | Rectifier-Rectifier | Rectifier-Rectifier |
| Base | Not recorded | 4AD |
| Socket | Not recorded | UX4 |
| Base pins | Not recorded | 4 |
| Sections | 2 | 2 |
| Heater voltage | 5 V | 5 V |
| Heater current | 2 A | 2 A |
Where 5X3 can be used as the replacement
In these recorded relationships, 5X3 is the replacement tube. The listed original tubes are not automatically suitable as replacements for 5X3.
Rectifier - Full Wave
The database records 5X3 as a possible replacement for80.
No special restrictions are recorded for this substitution.
| Specification | 5X3 replacement | Original tube |
|---|---|---|
| Tube type | Rectifier - Full Wave | Rectifier - Full Wave |
| Construction | Rectifier-Rectifier | Rectifier-Rectifier |
| Base | Not recorded | 4C |
| Socket | Not recorded | UX4 |
| Base pins | Not recorded | 4 |
| Sections | 2 | 2 |
| Heater voltage | 5 V | 5 V |
| Heater current | 2 A | 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 5X3 specifications →