Tube cross-reference
6BW7 alternatives, equivalents, and replacements
Review exact electrical variations and directional substitutions recorded for the 6BW7 voltage pentode. Compare core specifications and verify every restriction before using a replacement.
Replacement tubes for 6BW7
The following tubes are recorded as possible replacements for 6BW7. This direction does not establish that 6BW7 can replace them.
Voltage Pentode
The database records 6F23 as a possible replacement for6BW7.
No special restrictions are recorded for this substitution.
| Specification | Original tube | Replacement |
|---|---|---|
| Tube type | Voltage Pentode | Voltage Pentode |
| Construction | Pentode | Pentode |
| Base | 9AQ | B9A |
| Socket | B9A | B9A |
| Base pins | 9 | 9 |
| Sections | 1 | 1 |
| Heater voltage | 6.3 V | 6.3 V |
| Heater current | 0.3 A | 0.3 A |
Voltage Pentode - High Frequency (single)
The database records EF80 as a possible replacement for6BW7.
No special restrictions are recorded for this substitution.
| Specification | Original tube | Replacement |
|---|---|---|
| Tube type | Voltage Pentode | Voltage Pentode - High Frequency (single) |
| Construction | Pentode | Pentode |
| Base | 9AQ | B9A |
| Socket | B9A | B9A |
| Base pins | 9 | 9 |
| Sections | 1 | 1 |
| Heater voltage | 6.3 V | 6.3 V |
| Heater current | 0.3 A | 0.3 A |
Voltage Pentode
The database records 6BX6 as a possible replacement for6BW7.
No special restrictions are recorded for this substitution.
| Specification | Original tube | Replacement |
|---|---|---|
| Tube type | Voltage Pentode | Voltage Pentode |
| Construction | Pentode | Pentode |
| Base | 9AQ | 9AQ |
| Socket | B9A | B9A |
| Base pins | 9 | 9 |
| Sections | 1 | 1 |
| Heater voltage | 6.3 V | 6.3 V |
| Heater current | 0.3 A | 0.3 A |
Voltage Pentode - High Frequency (single)
The database records 6EL7 as a possible replacement for6BW7.
No special restrictions are recorded for this substitution.
| Specification | Original tube | Replacement |
|---|---|---|
| Tube type | Voltage Pentode | Voltage Pentode - High Frequency (single) |
| Construction | Pentode | Pentode |
| Base | 9AQ | Not recorded |
| Socket | B9A | B9A |
| Base pins | 9 | 9 |
| Sections | 1 | 1 |
| Heater voltage | 6.3 V | 6.3 V |
| Heater current | 0.3 A | 0.3 A |
Voltage Pentode - Sharp Cutoff (single)
The database records 6HM6 as a possible replacement for6BW7.
- Not suitable for all circuits
| Specification | Original tube | Replacement |
|---|---|---|
| Tube type | Voltage Pentode | Voltage Pentode - Sharp Cutoff (single) |
| Construction | Pentode | Pentode |
| Base | 9AQ | 9PM |
| Socket | B9A | B9A |
| Base pins | 9 | 9 |
| Sections | 1 | 1 |
| Heater voltage | 6.3 V | 6.3 V |
| Heater current | 0.3 A | 0.3 A |
Where 6BW7 can be used as the replacement
In these recorded relationships, 6BW7 is the replacement tube. The listed original tubes are not automatically suitable as replacements for 6BW7.
Voltage Pentode
The database records 6BW7 as a possible replacement for6BX6.
No special restrictions are recorded for this substitution.
| Specification | 6BW7 replacement | Original tube |
|---|---|---|
| Tube type | Voltage Pentode | Voltage Pentode |
| Construction | Pentode | Pentode |
| Base | 9AQ | 9AQ |
| Socket | B9A | B9A |
| Base pins | 9 | 9 |
| Sections | 1 | 1 |
| Heater voltage | 6.3 V | 6.3 V |
| Heater current | 0.3 A | 0.3 A |
Voltage Pentode - High Frequency (single)
The database records 6BW7 as a possible replacement for6EL7.
No special restrictions are recorded for this substitution.
| Specification | 6BW7 replacement | Original tube |
|---|---|---|
| Tube type | Voltage Pentode | Voltage Pentode - High Frequency (single) |
| Construction | Pentode | Pentode |
| Base | 9AQ | Not recorded |
| Socket | B9A | B9A |
| Base pins | 9 | 9 |
| Sections | 1 | 1 |
| Heater voltage | 6.3 V | 6.3 V |
| Heater current | 0.3 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 6BW7 specifications →