Tube cross-reference
6FN5 alternatives, equivalents, and replacements
Review exact electrical variations and directional substitutions recorded for the 6FN5 power - tv horizontal output (sweep). Compare core specifications and verify every restriction before using a replacement.
Where 6FN5 can be used as the replacement
In these recorded relationships, 6FN5 is the replacement tube. The listed original tubes are not automatically suitable as replacements for 6FN5.
Power - TV Horizontal Output (sweep)
The database records 6FN5 as a possible replacement forEL300.
No special restrictions are recorded for this substitution.
| Specification | 6FN5 replacement | Original tube |
|---|---|---|
| Tube type | Power - TV Horizontal Output (sweep) | Power - TV Horizontal Output (sweep) |
| Construction | Pentode | Pentode |
| Base | Not recorded | Not recorded |
| Socket | IO | Not recorded |
| Base pins | 8 | 8 |
| Sections | 1 | 1 |
| Heater voltage | 6.3 V | 6.3 V |
| Heater current | 1.65 A | 1.65 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 6FN5 specifications →