Tube cross-reference
6FD12 alternatives, equivalents, and replacements
Review exact electrical variations and directional substitutions recorded for the 6FD12 voltage radio detector converter. Compare core specifications and verify every restriction before using a replacement.
Replacement tubes for 6FD12
The following tubes are recorded as possible replacements for 6FD12. This direction does not establish that 6FD12 can replace them.
Voltage Radio Detector Converter
The database records 6DC8 as a possible replacement for6FD12.
No special restrictions are recorded for this substitution.
| Specification | Original tube | Replacement |
|---|---|---|
| Tube type | Voltage Radio Detector Converter | Voltage Radio Detector Converter |
| Construction | Diode-Diode-Pentode | Diode-Diode-Pentode |
| Base | Not recorded | Not recorded |
| Socket | B9A | B9A |
| Base pins | 9 | 9 |
| Sections | 3 | 3 |
| Heater voltage | 6.3 V | 6.3 V |
| Heater current | 0.3 A | 0.3 A |
Where 6FD12 can be used as the replacement
In these recorded relationships, 6FD12 is the replacement tube. The listed original tubes are not automatically suitable as replacements for 6FD12.
Voltage Radio Detector Converter
The database records 6FD12 as a possible replacement for6AD8.
No special restrictions are recorded for this substitution.
| Specification | 6FD12 replacement | Original tube |
|---|---|---|
| Tube type | Voltage Radio Detector Converter | Voltage Radio Detector Converter |
| Construction | Diode-Diode-Pentode | Diode-Diode-Pentode |
| Base | Not recorded | 9T |
| Socket | B9A | B9A |
| Base pins | 9 | Not recorded |
| Sections | 3 | 3 |
| Heater voltage | 6.3 V | 6.3 V |
| Heater current | 0.3 A | 0.3 A |
Voltage Radio Detector Converter
The database records 6FD12 as a possible replacement for6DC8.
No special restrictions are recorded for this substitution.
| Specification | 6FD12 replacement | Original tube |
|---|---|---|
| Tube type | Voltage Radio Detector Converter | Voltage Radio Detector Converter |
| Construction | Diode-Diode-Pentode | Diode-Diode-Pentode |
| Base | Not recorded | Not recorded |
| Socket | B9A | B9A |
| Base pins | 9 | 9 |
| Sections | 3 | 3 |
| Heater voltage | 6.3 V | 6.3 V |
| Heater current | 0.3 A | 0.3 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 6FD12 specifications →