Tube cross-reference
HK90 alternatives, equivalents, and replacements
Review exact electrical variations and directional substitutions recorded for the HK90 voltage radio detector converter. Compare core specifications and verify every restriction before using a replacement.
Exact variations of HK90
These designations belong to the same electrical variation group. Their names may differ because of international standards, manufacturing tolerances, or materials, but they are recorded as electrically equivalent—not merely substitutes.
12BE6 Voltage Radio Detector Converter
- Base
- 7CH
- Socket
- B7G
- Base pins
- 7
- Sections
- 1
- Heater voltage
- 12.6 V
- Heater current
- 0.15 A
Replacement tubes for HK90
The following tubes are recorded as possible replacements for HK90. This direction does not establish that HK90 can replace them.
Voltage Radio Detector Converter
The database records 12BE6 as a possible replacement forHK90.
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 | Not recorded | 7CH |
| Socket | B7G | B7G |
| Base pins | 7 | 7 |
| Sections | 1 | 1 |
| Heater voltage | 12.6 V | 12.6 V |
| Heater current | 0.15 A | 0.15 A |
Where HK90 can be used as the replacement
In these recorded relationships, HK90 is the replacement tube. The listed original tubes are not automatically suitable as replacements for HK90.
Voltage Radio Detector Converter
The database records HK90 as a possible replacement for12BE6.
No special restrictions are recorded for this substitution.
| Specification | HK90 replacement | Original tube |
|---|---|---|
| Tube type | Voltage Radio Detector Converter | Voltage Radio Detector Converter |
| Construction | Heptode | Heptode |
| Base | Not recorded | 7CH |
| Socket | B7G | B7G |
| Base pins | 7 | 7 |
| Sections | 1 | 1 |
| Heater voltage | 12.6 V | 12.6 V |
| Heater current | 0.15 A | 0.15 A |
Heptode
The database records HK90 as a possible replacement for12CS6.
No special restrictions are recorded for this substitution.
| Specification | HK90 replacement | Original tube |
|---|---|---|
| Tube type | Voltage Radio Detector Converter | Heptode |
| Construction | Heptode | Heptode |
| Base | Not recorded | Not recorded |
| Socket | B7G | B7G |
| Base pins | 7 | 7 |
| Sections | 1 | 1 |
| Heater voltage | 12.6 V | 12.6 V |
| Heater current | 0.15 A | 0.15 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 HK90 specifications →