Tube cross-reference
EK90 alternatives, equivalents, and replacements
Review exact electrical variations and directional substitutions recorded for the EK90 voltage radio detector converter. Compare core specifications and verify every restriction before using a replacement.
Replacement tubes for EK90
The following tubes are recorded as possible replacements for EK90. This direction does not establish that EK90 can replace them.
Voltage Radio Detector Converter
The database records 6BE6 as a possible replacement forEK90.
No special restrictions are recorded for this substitution.
| Specification | Original tube | Replacement |
|---|---|---|
| Tube type | Voltage Radio Detector Converter | Voltage Radio Detector Converter |
| Construction | Heptode | Heptode |
| Base | B7G | 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 EK90 can be used as the replacement
In these recorded relationships, EK90 is the replacement tube. The listed original tubes are not automatically suitable as replacements for EK90.
Voltage Radio Detector Converter
The database records EK90 as a possible replacement for5750.
No special restrictions are recorded for this substitution.
| Specification | EK90 replacement | Original tube |
|---|---|---|
| Tube type | Voltage Radio Detector Converter | Voltage Radio Detector Converter |
| Construction | Heptode | Heptode |
| Base | B7G | 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 for6BE6.
No special restrictions are recorded for this substitution.
| Specification | EK90 replacement | Original tube |
|---|---|---|
| Tube type | Voltage Radio Detector Converter | Voltage Radio Detector Converter |
| Construction | Heptode | Heptode |
| Base | B7G | 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 EK90 as a possible replacement for6BY6.
No special restrictions are recorded for this substitution.
| Specification | EK90 replacement | Original tube |
|---|---|---|
| Tube type | Voltage Radio Detector Converter | Heptode |
| Construction | Heptode | Heptode |
| Base | B7G | 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 EK90 as a possible replacement for6CS6.
No special restrictions are recorded for this substitution.
| Specification | EK90 replacement | Original tube |
|---|---|---|
| Tube type | Voltage Radio Detector Converter | Heptode |
| Construction | Heptode | Heptode |
| Base | B7G | 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 EK90 specifications →