Tube cross-reference
12H31 alternatives, equivalents, and replacements
Review exact electrical variations and directional substitutions recorded for the 12H31 voltage radio detector converter. Compare core specifications and verify every restriction before using a replacement.
Replacement tubes for 12H31
The following tubes are recorded as possible replacements for 12H31. This direction does not establish that 12H31 can replace them.
Voltage Radio Detector Converter
The database records 12BE6 as a possible replacement for12H31.
No special restrictions are recorded for this substitution.
| Specification | Original tube | Replacement |
|---|---|---|
| Tube type | Voltage Radio Detector Converter | Voltage Radio Detector Converter |
| Construction | Heptode | Heptode |
| Base | Not recorded | 7CH |
| Socket | B7G | B7G |
| Base pins | 7 | 7 |
| Sections | 1 | 1 |
| Heater voltage | 12.6 V | 12.6 V |
| Heater current | 0.15 A | 0.15 A |
Where 12H31 can be used as the replacement
In these recorded relationships, 12H31 is the replacement tube. The listed original tubes are not automatically suitable as replacements for 12H31.
Voltage Radio Detector Converter
The database records 12H31 as a possible replacement for12BE6.
No special restrictions are recorded for this substitution.
| Specification | 12H31 replacement | Original tube |
|---|---|---|
| Tube type | Voltage Radio Detector Converter | Voltage Radio Detector Converter |
| Construction | Heptode | Heptode |
| Base | Not recorded | 7CH |
| Socket | B7G | B7G |
| Base pins | 7 | 7 |
| Sections | 1 | 1 |
| Heater voltage | 12.6 V | 12.6 V |
| Heater current | 0.15 A | 0.15 A |
Heptode
The database records 12H31 as a possible replacement for12CS6.
No special restrictions are recorded for this substitution.
| Specification | 12H31 replacement | Original tube |
|---|---|---|
| Tube type | Voltage Radio Detector Converter | Heptode |
| Construction | Heptode | Heptode |
| Base | Not recorded | Not recorded |
| Socket | B7G | B7G |
| Base pins | 7 | 7 |
| Sections | 1 | 1 |
| Heater voltage | 12.6 V | 12.6 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 12H31 specifications →