Tube cross-reference
10P18 alternatives, equivalents, and replacements
Review exact electrical variations and directional substitutions recorded for the 10P18 power - pentode (not beam). Compare core specifications and verify every restriction before using a replacement.
Replacement tubes for 10P18
The following tubes are recorded as possible replacements for 10P18. This direction does not establish that 10P18 can replace them.
Power - Pentode (NOT beam)
The database records 45B5 as a possible replacement for10P18.
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 | Not recorded |
| Socket | B9A | B9A |
| Base pins | 9 | 9 |
| Sections | 1 | 1 |
| Heater voltage | 45 V | 45 V |
| Heater current | 0.1 A | 0.1 A |
Where 10P18 can be used as the replacement
In these recorded relationships, 10P18 is the replacement tube. The listed original tubes are not automatically suitable as replacements for 10P18.
Power - Pentode (NOT beam)
The database records 10P18 as a possible replacement for45B5.
No special restrictions are recorded for this substitution.
| Specification | 10P18 replacement | Original tube |
|---|---|---|
| Tube type | Power - Pentode (NOT beam) | Power - Pentode (NOT beam) |
| Construction | Pentode | Pentode |
| Base | Not recorded | Not recorded |
| Socket | B9A | B9A |
| Base pins | 9 | 9 |
| Sections | 1 | 1 |
| Heater voltage | 45 V | 45 V |
| Heater current | 0.1 A | 0.1 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 10P18 specifications →