Tube cross-reference
6AF6G alternatives, equivalents, and replacements
Review exact electrical variations and directional substitutions recorded for the 6AF6G tuning indicator. Compare core specifications and verify every restriction before using a replacement.
Exact variations of 6AF6G
These designations belong to the same electrical variation group. Their names may differ because of international standards, manufacturing tolerances, or materials, but they are recorded as electrically equivalent—not merely substitutes.
6AD6G Tuning Indicator
- Base
- 7AG
- Socket
- B7
- Base pins
- 8
- Sections
- 1
- Heater voltage
- 6.3 V
- Heater current
- 0.15 A
Replacement tubes for 6AF6G
The following tubes are recorded as possible replacements for 6AF6G. This direction does not establish that 6AF6G can replace them.
Tuning Indicator
The database records 6AD6G as a possible replacement for6AF6G.
No special restrictions are recorded for this substitution.
| Specification | Original tube | Replacement |
|---|---|---|
| Tube type | Tuning Indicator | Tuning Indicator |
| Construction | TuningIndicator | TuningIndicator |
| Base | 7AG | 7AG |
| Socket | IO | B7 |
| Base pins | 8 | 8 |
| Sections | 1 | 1 |
| Heater voltage | 6.3 V | 6.3 V |
| Heater current | 0.15 A | 0.15 A |
Where 6AF6G can be used as the replacement
In these recorded relationships, 6AF6G is the replacement tube. The listed original tubes are not automatically suitable as replacements for 6AF6G.
Tuning Indicator
The database records 6AF6G as a possible replacement for6AD6G.
No special restrictions are recorded for this substitution.
| Specification | 6AF6G replacement | Original tube |
|---|---|---|
| Tube type | Tuning Indicator | Tuning Indicator |
| Construction | TuningIndicator | TuningIndicator |
| Base | 7AG | 7AG |
| Socket | IO | B7 |
| Base pins | 8 | 8 |
| Sections | 1 | 1 |
| Heater voltage | 6.3 V | 6.3 V |
| Heater current | 0.15 A | 0.15 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 6AF6G specifications →