Tube cross-reference
6FG5 alternatives, equivalents, and replacements
Review exact electrical variations and directional substitutions recorded for the 6FG5 power - beam single (not sweep) (under 10w). Compare core specifications and verify every restriction before using a replacement.
Replacement tubes for 6FG5
The following tubes are recorded as possible replacements for 6FG5. This direction does not establish that 6FG5 can replace them.
Voltage Radio Detector Converter
The database records 6HS6 as a possible replacement for6FG5.
- Parallel heater circuits only
- Not suitable for all circuits
| Specification | Original tube | Replacement |
|---|---|---|
| Tube type | Power - Beam Single (NOT sweep) (under 10W) | Voltage Radio Detector Converter |
| Construction | BeamPower | Pentode |
| Base | Not recorded | 7BK |
| Socket | B7G | B7G |
| Base pins | 7 | 7 |
| Sections | 1 | 1 |
| Heater voltage | 6.3 V | 6.3 V |
| Heater current | 0.45 A | 0.45 A |
Where 6FG5 can be used as the replacement
In these recorded relationships, 6FG5 is the replacement tube. The listed original tubes are not automatically suitable as replacements for 6FG5.
Power - Beam Single (NOT sweep) (under 10W)
The database records 6FG5 as a possible replacement for6FS5.
No special restrictions are recorded for this substitution.
| Specification | 6FG5 replacement | Original tube |
|---|---|---|
| Tube type | Power - Beam Single (NOT sweep) (under 10W) | Power - Beam Single (NOT sweep) (under 10W) |
| Construction | BeamPower | BeamPower |
| Base | Not recorded | 7GA |
| Socket | B7G | B9A |
| Base pins | 7 | 9 |
| Sections | 1 | 1 |
| Heater voltage | 6.3 V | 6.3 V |
| Heater current | 0.45 A | 0.2 A |
Voltage Radio Detector Converter
The database records 6FG5 as a possible replacement for6HS6.
- Parallel heater circuits only
- Not suitable for all circuits
| Specification | 6FG5 replacement | Original tube |
|---|---|---|
| Tube type | Power - Beam Single (NOT sweep) (under 10W) | Voltage Radio Detector Converter |
| Construction | BeamPower | Pentode |
| Base | Not recorded | 7BK |
| Socket | B7G | B7G |
| Base pins | 7 | 7 |
| Sections | 1 | 1 |
| Heater voltage | 6.3 V | 6.3 V |
| Heater current | 0.45 A | 0.45 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 6FG5 specifications →