Tube cross-reference
6HU8 alternatives, equivalents, and replacements
Review exact electrical variations and directional substitutions recorded for the 6HU8 power - pentode (not beam). Compare core specifications and verify every restriction before using a replacement.
Exact variations of 6HU8
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.
ELL80 Power - Pentode (NOT beam)
- Base
- Not recorded
- Socket
- B9A
- Base pins
- Not recorded
- Sections
- 2
- Heater voltage
- 6.3 V
- Heater current
- 0.55 A
Replacement tubes for 6HU8
The following tubes are recorded as possible replacements for 6HU8. This direction does not establish that 6HU8 can replace them.
Power - Pentode (NOT beam)
The database records ELL80 as a possible replacement for6HU8.
No special restrictions are recorded for this substitution.
| Specification | Original tube | Replacement |
|---|---|---|
| Tube type | Power - Pentode (NOT beam) | Power - Pentode (NOT beam) |
| Construction | Pentode-Pentode | Pentode-Pentode |
| Base | Not recorded | Not recorded |
| Socket | B9A | B9A |
| Base pins | 9 | Not recorded |
| Sections | 2 | 2 |
| Heater voltage | 6.3 V | 6.3 V |
| Heater current | 0.55 A | 0.55 A |
Where 6HU8 can be used as the replacement
In these recorded relationships, 6HU8 is the replacement tube. The listed original tubes are not automatically suitable as replacements for 6HU8.
Power - Pentode (NOT beam)
The database records 6HU8 as a possible replacement forELL80.
No special restrictions are recorded for this substitution.
| Specification | 6HU8 replacement | Original tube |
|---|---|---|
| Tube type | Power - Pentode (NOT beam) | Power - Pentode (NOT beam) |
| Construction | Pentode-Pentode | Pentode-Pentode |
| Base | Not recorded | Not recorded |
| Socket | B9A | B9A |
| Base pins | 9 | Not recorded |
| Sections | 2 | 2 |
| Heater voltage | 6.3 V | 6.3 V |
| Heater current | 0.55 A | 0.55 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 6HU8 specifications →