Tube cross-reference
12A6 alternatives, equivalents, and replacements
Review exact electrical variations and directional substitutions recorded for the 12A6 power - beam single (not sweep) (under 10w). Compare core specifications and verify every restriction before using a replacement.
Replacement tubes for 12A6
The following tubes are recorded as possible replacements for 12A6. This direction does not establish that 12A6 can replace them.
Power - Beam Single (NOT sweep) (under 10W)
The database records 5659 as a possible replacement for12A6.
No special restrictions are recorded for this substitution.
| Specification | Original tube | Replacement |
|---|---|---|
| Tube type | Power - Beam Single (NOT sweep) (under 10W) | Power - Beam Single (NOT sweep) (under 10W) |
| Construction | BeamPower | BeamPower |
| Base | Not recorded | Not recorded |
| Socket | IO | Not recorded |
| Base pins | 7 | 7 |
| Sections | 1 | 1 |
| Heater voltage | 12.6 V | 12.6 V |
| Heater current | 0.15 A | 0.15 A |
Power - Beam Single (NOT sweep) (under 10W)
The database records 12A6GT as a possible replacement for12A6.
No special restrictions are recorded for this substitution.
| Specification | Original tube | Replacement |
|---|---|---|
| Tube type | Power - Beam Single (NOT sweep) (under 10W) | Power - Beam Single (NOT sweep) (under 10W) |
| Construction | BeamPower | BeamPower |
| Base | Not recorded | Not recorded |
| Socket | IO | IO |
| Base pins | 7 | 7 |
| Sections | 1 | 1 |
| Heater voltage | 12.6 V | 12.6 V |
| Heater current | 0.15 A | 0.15 A |
Power - Beam (NOT sweep)
The database records 12V6GT as a possible replacement for12A6.
- Parallel heater circuits only
- Not suitable for all circuits
| Specification | Original tube | Replacement |
|---|---|---|
| Tube type | Power - Beam Single (NOT sweep) (under 10W) | Power - Beam (NOT sweep) |
| Construction | BeamPower | BeamPower |
| Base | Not recorded | 7AC |
| Socket | IO | IO |
| Base pins | 7 | 8 |
| Sections | 1 | 1 |
| Heater voltage | 12.6 V | 12.6 V |
| Heater current | 0.15 A | 0.225 A |
Where 12A6 can be used as the replacement
In these recorded relationships, 12A6 is the replacement tube. The listed original tubes are not automatically suitable as replacements for 12A6.
Power - Beam Single (NOT sweep) (under 10W)
The database records 12A6 as a possible replacement for5659.
No special restrictions are recorded for this substitution.
| Specification | 12A6 replacement | Original tube |
|---|---|---|
| Tube type | Power - Beam Single (NOT sweep) (under 10W) | Power - Beam Single (NOT sweep) (under 10W) |
| Construction | BeamPower | BeamPower |
| Base | Not recorded | Not recorded |
| Socket | IO | Not recorded |
| Base pins | 7 | 7 |
| Sections | 1 | 1 |
| Heater voltage | 12.6 V | 12.6 V |
| Heater current | 0.15 A | 0.15 A |
Power - Beam Single (NOT sweep) (under 10W)
The database records 12A6 as a possible replacement for12A6GT.
No special restrictions are recorded for this substitution.
| Specification | 12A6 replacement | Original tube |
|---|---|---|
| Tube type | Power - Beam Single (NOT sweep) (under 10W) | Power - Beam Single (NOT sweep) (under 10W) |
| Construction | BeamPower | BeamPower |
| Base | Not recorded | Not recorded |
| Socket | IO | IO |
| Base pins | 7 | 7 |
| Sections | 1 | 1 |
| Heater voltage | 12.6 V | 12.6 V |
| Heater current | 0.15 A | 0.15 A |
Power - Beam (NOT sweep)
The database records 12A6 as a possible replacement for12V6GT.
- Parallel heater circuits only
- Not suitable for all circuits
| Specification | 12A6 replacement | Original tube |
|---|---|---|
| Tube type | Power - Beam Single (NOT sweep) (under 10W) | Power - Beam (NOT sweep) |
| Construction | BeamPower | BeamPower |
| Base | Not recorded | 7AC |
| Socket | IO | IO |
| Base pins | 7 | 8 |
| Sections | 1 | 1 |
| Heater voltage | 12.6 V | 12.6 V |
| Heater current | 0.15 A | 0.225 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 12A6 specifications →