Tube cross-reference
1D5 alternatives, equivalents, and replacements
Review exact electrical variations and directional substitutions recorded for the 1D5 rectifier - half wave. Compare core specifications and verify every restriction before using a replacement.
Where 1D5 can be used as the replacement
In these recorded relationships, 1D5 is the replacement tube. The listed original tubes are not automatically suitable as replacements for 1D5.
Rectifier - Half Wave
The database records 1D5 as a possible replacement for40SUA.
No special restrictions are recorded for this substitution.
| Specification | 1D5 replacement | Original tube |
|---|---|---|
| Tube type | Rectifier - Half Wave | Rectifier - Half Wave |
| Construction | Rectifier | Rectifier |
| Base | Not recorded | Not recorded |
| Socket | IO | B4 |
| Base pins | Not recorded | Not recorded |
| Sections | 1 | 1 |
| Heater voltage | 4 V | 40 V |
| Heater current | 0.2 A | 0.2 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 1D5 specifications →