Tube cross-reference
5679 alternatives, equivalents, and replacements
Review exact electrical variations and directional substitutions recorded for the 5679 diode (not rectifier). Compare core specifications and verify every restriction before using a replacement.
Where 5679 can be used as the replacement
In these recorded relationships, 5679 is the replacement tube. The listed original tubes are not automatically suitable as replacements for 5679.
Diode (NOT rectifier)
The database records 5679 as a possible replacement for7A6.
No special restrictions are recorded for this substitution.
| Specification | 5679 replacement | Original tube |
|---|---|---|
| Tube type | Diode (NOT rectifier) | Diode (NOT rectifier) |
| Construction | Diode-Diode | Diode-Diode |
| Base | 7CX | 7AJ |
| Socket | B7G | B8G |
| Base pins | 7 | 8 |
| Sections | 2 | 2 |
| Heater voltage | 6.3 V | 6.3 V |
| Heater current | 0.15 A | 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 5679 specifications →