Tube cross-reference
6JN8 alternatives, equivalents, and replacements
Review exact electrical variations and directional substitutions recorded for the 6JN8 voltage triode pentode. Compare core specifications and verify every restriction before using a replacement.
Where 6JN8 can be used as the replacement
In these recorded relationships, 6JN8 is the replacement tube. The listed original tubes are not automatically suitable as replacements for 6JN8.
Voltage Radio Detector Converter
The database records 6JN8 as a possible replacement for6BR8.
No special restrictions are recorded for this substitution.
| Specification | 6JN8 replacement | Original tube |
|---|---|---|
| Tube type | Voltage Triode Pentode | Voltage Radio Detector Converter |
| Construction | Pentode-Triode | Pentode-Triode |
| Base | 9AE | Not recorded |
| Socket | B9A | B9A |
| Base pins | 9 | 9 |
| Sections | 2 | 2 |
| Heater voltage | 6.3 V | 6.3 V |
| Heater current | 0.45 A | 0.45 A |
Voltage Radio Detector Converter
The database records 6JN8 as a possible replacement for6BR8A.
No special restrictions are recorded for this substitution.
| Specification | 6JN8 replacement | Original tube |
|---|---|---|
| Tube type | Voltage Triode Pentode | Voltage Radio Detector Converter |
| Construction | Pentode-Triode | Pentode-Triode |
| Base | 9AE | 9FA |
| Socket | B9A | B9A |
| Base pins | 9 | 9 |
| Sections | 2 | 2 |
| Heater voltage | 6.3 V | 6.3 V |
| Heater current | 0.45 A | 0.45 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 6JN8 specifications →