Tube cross-reference
6BY6 alternatives, equivalents, and replacements
Review exact electrical variations and directional substitutions recorded for the 6BY6 heptode. Compare core specifications and verify every restriction before using a replacement.
Replacement tubes for 6BY6
The following tubes are recorded as possible replacements for 6BY6. This direction does not establish that 6BY6 can replace them.
Voltage Radio Detector Converter
The database records 6H31 as a possible replacement for6BY6.
No special restrictions are recorded for this substitution.
| Specification | Original tube | Replacement |
|---|---|---|
| Tube type | Heptode | Voltage Radio Detector Converter |
| Construction | Heptode | Heptode |
| Base | 7CH | Not recorded |
| Socket | B7G | B7G |
| Base pins | 7 | 7 |
| Sections | 1 | 1 |
| Heater voltage | 6.3 V | 6.3 V |
| Heater current | 0.3 A | 0.3 A |
Heptode
The database records EH90 as a possible replacement for6BY6.
No special restrictions are recorded for this substitution.
| Specification | Original tube | Replacement |
|---|---|---|
| Tube type | Heptode | Heptode |
| Construction | Heptode | Heptode |
| Base | 7CH | Not recorded |
| Socket | B7G | B7G |
| Base pins | 7 | 7 |
| Sections | 1 | 1 |
| Heater voltage | 6.3 V | 6.3 V |
| Heater current | 0.3 A | 0.3 A |
Voltage Radio Detector Converter
The database records EK90 as a possible replacement for6BY6.
No special restrictions are recorded for this substitution.
| Specification | Original tube | Replacement |
|---|---|---|
| Tube type | Heptode | Voltage Radio Detector Converter |
| Construction | Heptode | Heptode |
| Base | 7CH | B7G |
| Socket | B7G | B7G |
| Base pins | 7 | 7 |
| Sections | 1 | 1 |
| Heater voltage | 6.3 V | 6.3 V |
| Heater current | 0.3 A | 0.3 A |
Voltage Radio Detector Converter
The database records 6BE6 as a possible replacement for6BY6.
No special restrictions are recorded for this substitution.
| Specification | Original tube | Replacement |
|---|---|---|
| Tube type | Heptode | Voltage Radio Detector Converter |
| Construction | Heptode | Heptode |
| Base | 7CH | 7CH |
| Socket | B7G | B7G |
| Base pins | 7 | 7 |
| Sections | 1 | 1 |
| Heater voltage | 6.3 V | 6.3 V |
| Heater current | 0.3 A | 0.3 A |
Heptode
The database records 6CS6 as a possible replacement for6BY6.
No special restrictions are recorded for this substitution.
| Specification | Original tube | Replacement |
|---|---|---|
| Tube type | Heptode | Heptode |
| Construction | Heptode | Heptode |
| Base | 7CH | 7CH |
| Socket | B7G | B7G |
| Base pins | 7 | 7 |
| Sections | 1 | 1 |
| Heater voltage | 6.3 V | 6.3 V |
| Heater current | 0.3 A | 0.3 A |
Where 6BY6 can be used as the replacement
In these recorded relationships, 6BY6 is the replacement tube. The listed original tubes are not automatically suitable as replacements for 6BY6.
Voltage Radio Detector Converter
The database records 6BY6 as a possible replacement for6BE6.
No special restrictions are recorded for this substitution.
| Specification | 6BY6 replacement | Original tube |
|---|---|---|
| Tube type | Heptode | Voltage Radio Detector Converter |
| Construction | Heptode | Heptode |
| Base | 7CH | 7CH |
| Socket | B7G | B7G |
| Base pins | 7 | 7 |
| Sections | 1 | 1 |
| Heater voltage | 6.3 V | 6.3 V |
| Heater current | 0.3 A | 0.3 A |
Heptode
The database records 6BY6 as a possible replacement for6CS6.
No special restrictions are recorded for this substitution.
| Specification | 6BY6 replacement | Original tube |
|---|---|---|
| Tube type | Heptode | Heptode |
| Construction | Heptode | Heptode |
| Base | 7CH | 7CH |
| Socket | B7G | B7G |
| Base pins | 7 | 7 |
| 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 6BY6 specifications →