Tube cross-reference
40Z5 alternatives, equivalents, and replacements
Review exact electrical variations and directional substitutions recorded for the 40Z5 rectifier - half wave. Compare core specifications and verify every restriction before using a replacement.
Replacement tubes for 40Z5
The following tubes are recorded as possible replacements for 40Z5. This direction does not establish that 40Z5 can replace them.
Rectifier - Half Wave
The database records 45Z5GT as a possible replacement for40Z5.
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 | 6AD |
| Socket | Not recorded | IO |
| Base pins | Not recorded | 6 |
| Sections | 1 | 1 |
| Heater voltage | Not recorded | 45 V |
| Heater current | Not recorded | 0.15 A |
Where 40Z5 can be used as the replacement
In these recorded relationships, 40Z5 is the replacement tube. The listed original tubes are not automatically suitable as replacements for 40Z5.
Rectifier - Half Wave
The database records 40Z5 as a possible replacement for45Z5GT.
No special restrictions are recorded for this substitution.
| Specification | 40Z5 replacement | Original tube |
|---|---|---|
| Tube type | Rectifier - Half Wave | Rectifier - Half Wave |
| Construction | Rectifier | Rectifier |
| Base | Not recorded | 6AD |
| Socket | Not recorded | IO |
| Base pins | Not recorded | 6 |
| Sections | 1 | 1 |
| Heater voltage | Not recorded | 45 V |
| Heater current | Not recorded | 0.15 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 40Z5 specifications →