Tube cross-reference
12AC6 alternatives, equivalents, and replacements
Review exact electrical variations and directional substitutions recorded for the 12AC6 voltage pentode or tetrode (under 100v). Compare core specifications and verify every restriction before using a replacement.
Replacement tubes for 12AC6
The following tubes are recorded as possible replacements for 12AC6. This direction does not establish that 12AC6 can replace them.
Voltage Pentode or Tetrode (under 100V)
The database records 12AF6 as a possible replacement for12AC6.
- Not suitable for all circuits
| Specification | Original tube | Replacement |
|---|---|---|
| Tube type | Voltage Pentode or Tetrode (under 100V) | Voltage Pentode or Tetrode (under 100V) |
| Construction | Pentode | Pentode |
| Base | 7BK | 7BK |
| 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 12AC6 can be used as the replacement
In these recorded relationships, 12AC6 is the replacement tube. The listed original tubes are not automatically suitable as replacements for 12AC6.
Voltage Pentode or Tetrode (under 100V)
The database records 12AC6 as a possible replacement for12AF6.
No special restrictions are recorded for this substitution.
| Specification | 12AC6 replacement | Original tube |
|---|---|---|
| Tube type | Voltage Pentode or Tetrode (under 100V) | Voltage Pentode or Tetrode (under 100V) |
| Construction | Pentode | Pentode |
| Base | 7BK | 7BK |
| 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 12AC6 specifications →