Tube cross-reference
30FL1 alternatives, equivalents, and replacements
Review exact electrical variations and directional substitutions recorded for the 30FL1 power - beam (not sweep). Compare core specifications and verify every restriction before using a replacement.
Replacement tubes for 30FL1
The following tubes are recorded as possible replacements for 30FL1. This direction does not establish that 30FL1 can replace them.
Power - Beam (NOT sweep)
The database records 9GB8 as a possible replacement for30FL1.
No special restrictions are recorded for this substitution.
| Specification | Original tube | Replacement |
|---|---|---|
| Tube type | Power - Beam (NOT sweep) | Power - Beam (NOT sweep) |
| Construction | BeamPower-Triode | BeamPower-Triode |
| Base | B9A | Not recorded |
| Socket | B9A | B9A |
| Base pins | 9 | Not recorded |
| Sections | 2 | 2 |
| Heater voltage | 9.4 V | 9 V |
| Heater current | 0.3 A | 0.3 A |
Where 30FL1 can be used as the replacement
In these recorded relationships, 30FL1 is the replacement tube. The listed original tubes are not automatically suitable as replacements for 30FL1.
Power - Beam (NOT sweep)
The database records 30FL1 as a possible replacement for9GB8.
No special restrictions are recorded for this substitution.
| Specification | 30FL1 replacement | Original tube |
|---|---|---|
| Tube type | Power - Beam (NOT sweep) | Power - Beam (NOT sweep) |
| Construction | BeamPower-Triode | BeamPower-Triode |
| Base | B9A | Not recorded |
| Socket | B9A | B9A |
| Base pins | 9 | Not recorded |
| Sections | 2 | 2 |
| Heater voltage | 9.4 V | 9 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 30FL1 specifications →