Tube cross-reference
25Y5 alternatives, equivalents, and replacements
Review exact electrical variations and directional substitutions recorded for the 25Y5 rectifier - full wave. Compare core specifications and verify every restriction before using a replacement.
Where 25Y5 can be used as the replacement
In these recorded relationships, 25Y5 is the replacement tube. The listed original tubes are not automatically suitable as replacements for 25Y5.
Rectifier - Full Wave
The database records 25Y5 as a possible replacement for25Z5.
No special restrictions are recorded for this substitution.
| Specification | 25Y5 replacement | Original tube |
|---|---|---|
| Tube type | Rectifier - Full Wave | Rectifier - Full Wave |
| Construction | Rectifier-Rectifier | Rectifier-Rectifier |
| Base | 6E | 6E |
| Socket | IO | UX6 |
| Base pins | 6 | 6 |
| Sections | 2 | 2 |
| Heater voltage | 25 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 25Y5 specifications →