Tube cross-reference
7631 alternatives, equivalents, and replacements
Review exact electrical variations and directional substitutions recorded for the 7631 diode (not rectifier). Compare core specifications and verify every restriction before using a replacement.
Where 7631 can be used as the replacement
In these recorded relationships, 7631 is the replacement tube. The listed original tubes are not automatically suitable as replacements for 7631.
Diode (NOT rectifier)
The database records 7631 as a possible replacement for6AL5.
No special restrictions are recorded for this substitution.
| Specification | 7631 replacement | Original tube |
|---|---|---|
| Tube type | Diode (NOT rectifier) | Diode (NOT rectifier) |
| Construction | Diode-Diode | Diode-Diode |
| Base | Not recorded | E7-1 |
| Socket | B7G | B7G |
| Base pins | 7 | 7 |
| Sections | 2 | 2 |
| Heater voltage | 6.3 V | 6.3 V |
| Heater current | Not recorded | 0.3 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 7631 specifications →