Tube cross-reference
7N7 alternatives, equivalents, and replacements
Review exact electrical variations and directional substitutions recorded for the 7N7 voltage - dual triode (similar). Compare core specifications and verify every restriction before using a replacement.
Replacement tubes for 7N7
The following tubes are recorded as possible replacements for 7N7. This direction does not establish that 7N7 can replace them.
7AF7
Receiving TubesVoltage - Dual Triode (similar)
The database records 7AF7 as a possible replacement for7N7.
- Parallel heater circuits only
| Specification | Original tube | Replacement |
|---|---|---|
| Tube type | Voltage - Dual Triode (similar) | Voltage - Dual Triode (similar) |
| Construction | Triode-Triode | Triode-Triode |
| Base | 8AC | 8AC |
| Socket | B8G | LOCTAL8 |
| Base pins | 8 | 8 |
| Sections | 2 | 2 |
| Heater voltage | 6.3 V | 6.3 V |
| Heater current | 0.6 A | 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 7N7 specifications →