Tube cross-reference
12K7G alternatives, equivalents, and replacements
Review exact electrical variations and directional substitutions recorded for the 12K7G voltage pentode - remote cutoff (single). Compare core specifications and verify every restriction before using a replacement.
Replacement tubes for 12K7G
The following tubes are recorded as possible replacements for 12K7G. This direction does not establish that 12K7G can replace them.
Voltage Pentode - Remote Cutoff (single)
The database records 12K7GT as a possible replacement for12K7G.
No special restrictions are recorded for this substitution.
| Specification | Original tube | Replacement |
|---|---|---|
| Tube type | Voltage Pentode - Remote Cutoff (single) | Voltage Pentode - Remote Cutoff (single) |
| Construction | Pentode | Pentode |
| Base | Not recorded | 7R |
| Socket | Not recorded | IO |
| Base pins | Not recorded | 8 |
| Sections | 1 | 1 |
| Heater voltage | 12.6 V | 12.6 V |
| Heater current | 0.15 A | 0.15 A |
Where 12K7G can be used as the replacement
In these recorded relationships, 12K7G is the replacement tube. The listed original tubes are not automatically suitable as replacements for 12K7G.
Voltage Pentode - Remote Cutoff (single)
The database records 12K7G as a possible replacement for12K7GT.
No special restrictions are recorded for this substitution.
| Specification | 12K7G replacement | Original tube |
|---|---|---|
| Tube type | Voltage Pentode - Remote Cutoff (single) | Voltage Pentode - Remote Cutoff (single) |
| Construction | Pentode | Pentode |
| Base | Not recorded | 7R |
| Socket | Not recorded | IO |
| Base pins | Not recorded | 8 |
| 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 12K7G specifications →