Tube cross-reference
2Y2 alternatives, equivalents, and replacements
Review exact electrical variations and directional substitutions recorded for the 2Y2 rectifier - half wave. Compare core specifications and verify every restriction before using a replacement.
Replacement tubes for 2Y2
The following tubes are recorded as possible replacements for 2Y2. This direction does not establish that 2Y2 can replace them.
Rectifier - Half Wave
The database records 2X2 as a possible replacement for2Y2.
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 | 4P |
| Socket | Not recorded | Not recorded |
| Base pins | Not recorded | 7 |
| Sections | 1 | 1 |
| Heater voltage | 2.5 V | 2.5 V |
| Heater current | 1.75 A | 1.75 A |
Rectifier - Half Wave
The database records 2X2A as a possible replacement for2Y2.
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 | 4AB |
| Socket | Not recorded | UX4 |
| Base pins | Not recorded | 4 |
| Sections | 1 | 1 |
| Heater voltage | 2.5 V | 2.5 V |
| Heater current | 1.75 A | 1.75 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 2Y2 specifications →