Tube cross-reference
6EC7 alternatives, equivalents, and replacements
Review exact electrical variations and directional substitutions recorded for the 6EC7 voltage pentode - remote cutoff (single). Compare core specifications and verify every restriction before using a replacement.
Replacement tubes for 6EC7
The following tubes are recorded as possible replacements for 6EC7. This direction does not establish that 6EC7 can replace them.
Voltage Pentode - Remote Cutoff (single)
The database records 6F18 as a possible replacement for6EC7.
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 | Not recorded |
| Socket | B9A | B9A |
| Base pins | 9 | 9 |
| Sections | 1 | 1 |
| Heater voltage | 6.3 V | 6.3 V |
| Heater current | 0.2 A | 0.2 A |
Voltage Pentode
The database records 6BX6 as a possible replacement for6EC7.
- Parallel heater circuits only
| Specification | Original tube | Replacement |
|---|---|---|
| Tube type | Voltage Pentode - Remote Cutoff (single) | Voltage Pentode |
| Construction | Pentode | Pentode |
| Base | Not recorded | 9AQ |
| Socket | B9A | B9A |
| Base pins | 9 | 9 |
| Sections | 1 | 1 |
| Heater voltage | 6.3 V | 6.3 V |
| Heater current | 0.2 A | 0.3 A |
Voltage Pentode - Remote Cutoff (single)
The database records 6BY7 as a possible replacement for6EC7.
- Parallel heater circuits only
| Specification | Original tube | Replacement |
|---|---|---|
| Tube type | Voltage Pentode - Remote Cutoff (single) | Voltage Pentode - Remote Cutoff (single) |
| Construction | Pentode | Pentode |
| Base | Not recorded | 9AQ |
| Socket | B9A | B9A |
| Base pins | 9 | 9 |
| Sections | 1 | 1 |
| Heater voltage | 6.3 V | 6.3 V |
| Heater current | 0.2 A | 0.3 A |
Where 6EC7 can be used as the replacement
In these recorded relationships, 6EC7 is the replacement tube. The listed original tubes are not automatically suitable as replacements for 6EC7.
Voltage Pentode - Remote Cutoff (single)
The database records 6EC7 as a possible replacement for6F18.
No special restrictions are recorded for this substitution.
| Specification | 6EC7 replacement | Original tube |
|---|---|---|
| Tube type | Voltage Pentode - Remote Cutoff (single) | Voltage Pentode - Remote Cutoff (single) |
| Construction | Pentode | Pentode |
| Base | Not recorded | Not recorded |
| Socket | B9A | B9A |
| Base pins | 9 | 9 |
| Sections | 1 | 1 |
| Heater voltage | 6.3 V | 6.3 V |
| Heater current | 0.2 A | 0.2 A |
Voltage Pentode
The database records 6EC7 as a possible replacement for6BX6.
- Parallel heater circuits only
| Specification | 6EC7 replacement | Original tube |
|---|---|---|
| Tube type | Voltage Pentode - Remote Cutoff (single) | Voltage Pentode |
| Construction | Pentode | Pentode |
| Base | Not recorded | 9AQ |
| Socket | B9A | B9A |
| Base pins | 9 | 9 |
| Sections | 1 | 1 |
| Heater voltage | 6.3 V | 6.3 V |
| Heater current | 0.2 A | 0.3 A |
Voltage Pentode - Remote Cutoff (single)
The database records 6EC7 as a possible replacement for6BY7.
- Parallel heater circuits only
| Specification | 6EC7 replacement | Original tube |
|---|---|---|
| Tube type | Voltage Pentode - Remote Cutoff (single) | Voltage Pentode - Remote Cutoff (single) |
| Construction | Pentode | Pentode |
| Base | Not recorded | 9AQ |
| Socket | B9A | B9A |
| Base pins | 9 | 9 |
| Sections | 1 | 1 |
| Heater voltage | 6.3 V | 6.3 V |
| Heater current | 0.2 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 6EC7 specifications →