Tube cross-reference
25B6G alternatives, equivalents, and replacements
Review exact electrical variations and directional substitutions recorded for the 25B6G power - pentode (not beam). Compare core specifications and verify every restriction before using a replacement.
Replacement tubes for 25B6G
The following tubes are recorded as possible replacements for 25B6G. This direction does not establish that 25B6G can replace them.
Power - Beam (NOT sweep)
The database records 5824 as a possible replacement for25B6G.
No special restrictions are recorded for this substitution.
| Specification | Original tube | Replacement |
|---|---|---|
| Tube type | Power - Pentode (NOT beam) | Power - Beam (NOT sweep) |
| Construction | Pentode | BeamPower |
| Base | 7S | 7AC |
| Socket | IO | IO |
| Base pins | 7 | 7 |
| Sections | 1 | 1 |
| Heater voltage | 25 V | 25 V |
| Heater current | 0.3 A | 0.3 A |
Where 25B6G can be used as the replacement
In these recorded relationships, 25B6G is the replacement tube. The listed original tubes are not automatically suitable as replacements for 25B6G.
Power - Beam (NOT sweep)
The database records 25B6G as a possible replacement for5824.
No special restrictions are recorded for this substitution.
| Specification | 25B6G replacement | Original tube |
|---|---|---|
| Tube type | Power - Pentode (NOT beam) | Power - Beam (NOT sweep) |
| Construction | Pentode | BeamPower |
| Base | 7S | 7AC |
| Socket | IO | IO |
| Base pins | 7 | 7 |
| Sections | 1 | 1 |
| Heater voltage | 25 V | 25 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 25B6G specifications →