Tube cross-reference
9P9 alternatives, equivalents, and replacements
Review exact electrical variations and directional substitutions recorded for the 9P9 power - pentode (not beam). Compare core specifications and verify every restriction before using a replacement.
Replacement tubes for 9P9
The following tubes are recorded as possible replacements for 9P9. This direction does not establish that 9P9 can replace them.
Power - Pentode (NOT beam)
The database records 9BM5 as a possible replacement for9P9.
No special restrictions are recorded for this substitution.
| Specification | Original tube | Replacement |
|---|---|---|
| Tube type | Power - Pentode (NOT beam) | Power - Pentode (NOT beam) |
| Construction | Pentode | Pentode |
| Base | Not recorded | 7BZ |
| Socket | B9A | B7G |
| Base pins | 9 | 7 |
| Sections | 1 | 1 |
| Heater voltage | 9.5 V | 9.5 V |
| Heater current | 0.3 A | 0.3 A |
Where 9P9 can be used as the replacement
In these recorded relationships, 9P9 is the replacement tube. The listed original tubes are not automatically suitable as replacements for 9P9.
Power - Pentode (NOT beam)
The database records 9P9 as a possible replacement for9BM5.
No special restrictions are recorded for this substitution.
| Specification | 9P9 replacement | Original tube |
|---|---|---|
| Tube type | Power - Pentode (NOT beam) | Power - Pentode (NOT beam) |
| Construction | Pentode | Pentode |
| Base | Not recorded | 7BZ |
| Socket | B9A | B7G |
| Base pins | 9 | 7 |
| Sections | 1 | 1 |
| Heater voltage | 9.5 V | 9.5 V |
| Heater current | 0.3 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 9P9 specifications →