Tube cross-reference
55N3 alternatives, equivalents, and replacements
Review exact electrical variations and directional substitutions recorded for the 55N3 rectifier - half wave. Compare core specifications and verify every restriction before using a replacement.
Exact variations of 55N3
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.
UY82 Rectifier - Half Wave
- Base
- Not recorded
- Socket
- B9A
- Base pins
- Not recorded
- Sections
- 1
- Heater voltage
- 55 V
- Heater current
- 0.1 A
Replacement tubes for 55N3
The following tubes are recorded as possible replacements for 55N3. This direction does not establish that 55N3 can replace them.
Rectifier - Half Wave
The database records UY82 as a possible replacement for55N3.
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 | Not recorded |
| Socket | B9A | B9A |
| Base pins | Not recorded | Not recorded |
| Sections | 1 | 1 |
| Heater voltage | 55 V | 55 V |
| Heater current | 0.1 A | 0.1 A |
Where 55N3 can be used as the replacement
In these recorded relationships, 55N3 is the replacement tube. The listed original tubes are not automatically suitable as replacements for 55N3.
Rectifier - Half Wave
The database records 55N3 as a possible replacement forUY82.
No special restrictions are recorded for this substitution.
| Specification | 55N3 replacement | Original tube |
|---|---|---|
| Tube type | Rectifier - Half Wave | Rectifier - Half Wave |
| Construction | Rectifier | Rectifier |
| Base | Not recorded | Not recorded |
| Socket | B9A | B9A |
| Base pins | Not recorded | Not recorded |
| Sections | 1 | 1 |
| Heater voltage | 55 V | 55 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 55N3 specifications →