Tube cross-reference
6SF7 alternatives, equivalents, and replacements
Review exact electrical variations and directional substitutions recorded for the 6SF7 voltage radio detector converter. Compare core specifications and verify every restriction before using a replacement.
Replacement tubes for 6SF7
The following tubes are recorded as possible replacements for 6SF7. This direction does not establish that 6SF7 can replace them.
Voltage Radio Detector Converter
The database records 6SF7GT as a possible replacement for6SF7.
No special restrictions are recorded for this substitution.
| Specification | Original tube | Replacement |
|---|---|---|
| Tube type | Voltage Radio Detector Converter | Voltage Radio Detector Converter |
| Construction | Diode-Pentode | Diode-Pentode |
| Base | 7AZ | Not recorded |
| Socket | IO | IO |
| Base pins | 8 | Not recorded |
| Sections | 2 | 2 |
| Heater voltage | 6.3 V | Not recorded |
| Heater current | 0.3 A | Not recorded |
Where 6SF7 can be used as the replacement
In these recorded relationships, 6SF7 is the replacement tube. The listed original tubes are not automatically suitable as replacements for 6SF7.
Voltage Radio Detector Converter
The database records 6SF7 as a possible replacement for6SF7GT.
No special restrictions are recorded for this substitution.
| Specification | 6SF7 replacement | Original tube |
|---|---|---|
| Tube type | Voltage Radio Detector Converter | Voltage Radio Detector Converter |
| Construction | Diode-Pentode | Diode-Pentode |
| Base | 7AZ | Not recorded |
| Socket | IO | IO |
| Base pins | 8 | Not recorded |
| Sections | 2 | 2 |
| Heater voltage | 6.3 V | Not recorded |
| Heater current | 0.3 A | Not recorded |
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 6SF7 specifications →