Tube cross-reference
UY41 alternatives, equivalents, and replacements
Review exact electrical variations and directional substitutions recorded for the UY41 rectifier - half wave. Compare core specifications and verify every restriction before using a replacement.
Exact variations of UY41
These designations belong to the same electrical variation group. Their names may differ because of international standards, manufacturing tolerances, or materials, but they are recorded as electrically equivalent—not merely substitutes.
31A3 Rectifier - Half Wave
- Base
- 8HB
- Socket
- Not recorded
- Base pins
- Not recorded
- Sections
- 1
- Heater voltage
- 31 V
- Heater current
- 0.1 A
Replacement tubes for UY41
The following tubes are recorded as possible replacements for UY41. This direction does not establish that UY41 can replace them.
Rectifier - Half Wave
The database records 31A3 as a possible replacement forUY41.
No special restrictions are recorded for this substitution.
| Specification | Original tube | Replacement |
|---|---|---|
| Tube type | Rectifier - Half Wave | Rectifier - Half Wave |
| Construction | Rectifier | Rectifier |
| Base | Not recorded | 8HB |
| Socket | B8A | Not recorded |
| Base pins | Not recorded | Not recorded |
| Sections | 1 | 1 |
| Heater voltage | 31 V | 31 V |
| Heater current | 0.1 A | 0.1 A |
Where UY41 can be used as the replacement
In these recorded relationships, UY41 is the replacement tube. The listed original tubes are not automatically suitable as replacements for UY41.
Rectifier - Half Wave
The database records UY41 as a possible replacement for31A3.
No special restrictions are recorded for this substitution.
| Specification | UY41 replacement | Original tube |
|---|---|---|
| Tube type | Rectifier - Half Wave | Rectifier - Half Wave |
| Construction | Rectifier | Rectifier |
| Base | Not recorded | 8HB |
| Socket | B8A | Not recorded |
| Base pins | Not recorded | Not recorded |
| Sections | 1 | 1 |
| Heater voltage | 31 V | 31 V |
| Heater current | 0.1 A | 0.1 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 UY41 specifications →