Tube cross-reference
6FR7 alternatives, equivalents, and replacements
Review exact electrical variations and directional substitutions recorded for the 6FR7 power - tv vertical output. Compare core specifications and verify every restriction before using a replacement.
Replacement tubes for 6FR7
The following tubes are recorded as possible replacements for 6FR7. This direction does not establish that 6FR7 can replace them.
Power - TV Vertical Output
The database records 6FD7 as a possible replacement for6FR7.
No special restrictions are recorded for this substitution.
| Specification | Original tube | Replacement |
|---|---|---|
| Tube type | Power - TV Vertical Output | Power - TV Vertical Output |
| Construction | Triode-Triode | Triode-Triode |
| Base | Not recorded | 9HF |
| Socket | Not recorded | B9A |
| Base pins | 9 | 9 |
| Sections | 2 | 2 |
| Heater voltage | 9.7 V | 6.3 V |
| Heater current | Not recorded | 0.925 A |
Where 6FR7 can be used as the replacement
In these recorded relationships, 6FR7 is the replacement tube. The listed original tubes are not automatically suitable as replacements for 6FR7.
Power - TV Vertical Output
The database records 6FR7 as a possible replacement for6DR7.
No special restrictions are recorded for this substitution.
| Specification | 6FR7 replacement | Original tube |
|---|---|---|
| Tube type | Power - TV Vertical Output | Power - TV Vertical Output |
| Construction | Triode-Triode | Triode-Triode |
| Base | Not recorded | 9MF |
| Socket | Not recorded | B9A |
| Base pins | 9 | 9 |
| Sections | 2 | 2 |
| Heater voltage | 9.7 V | 6.3 V |
| Heater current | Not recorded | 0.9 A |
Power - TV Vertical Output
The database records 6FR7 as a possible replacement for6FD7.
No special restrictions are recorded for this substitution.
| Specification | 6FR7 replacement | Original tube |
|---|---|---|
| Tube type | Power - TV Vertical Output | Power - TV Vertical Output |
| Construction | Triode-Triode | Triode-Triode |
| Base | Not recorded | 9HF |
| Socket | Not recorded | B9A |
| Base pins | 9 | 9 |
| Sections | 2 | 2 |
| Heater voltage | 9.7 V | 6.3 V |
| Heater current | Not recorded | 0.925 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 6FR7 specifications →