Tube cross-reference
6GW8 alternatives, equivalents, and replacements
Review exact electrical variations and directional substitutions recorded for the 6GW8 power - pentode (not beam). Compare core specifications and verify every restriction before using a replacement.
Exact variations of 6GW8
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.
ECL86 Power - Pentode (NOT beam)
- Base
- 9LZ
- Socket
- B9A
- Base pins
- 9
- Sections
- 2
- Heater voltage
- 6.3 V
- Heater current
- 0.66 A
Replacement tubes for 6GW8
The following tubes are recorded as possible replacements for 6GW8. This direction does not establish that 6GW8 can replace them.
Power - Pentode (NOT beam)
The database records ECL86 as a possible replacement for6GW8.
No special restrictions are recorded for this substitution.
| Specification | Original tube | Replacement |
|---|---|---|
| Tube type | Power - Pentode (NOT beam) | Power - Pentode (NOT beam) |
| Construction | Pentode-Triode | Pentode-Triode |
| Base | 9LZ | 9LZ |
| Socket | B9A | B9A |
| Base pins | 9 | 9 |
| Sections | 2 | 2 |
| Heater voltage | 6.3 V | 6.3 V |
| Heater current | 0.66 A | 0.66 A |
Where 6GW8 can be used as the replacement
In these recorded relationships, 6GW8 is the replacement tube. The listed original tubes are not automatically suitable as replacements for 6GW8.
Power - Pentode (NOT beam)
The database records 6GW8 as a possible replacement forECL86.
No special restrictions are recorded for this substitution.
| Specification | 6GW8 replacement | Original tube |
|---|---|---|
| Tube type | Power - Pentode (NOT beam) | Power - Pentode (NOT beam) |
| Construction | Pentode-Triode | Pentode-Triode |
| Base | 9LZ | 9LZ |
| Socket | B9A | B9A |
| Base pins | 9 | 9 |
| Sections | 2 | 2 |
| Heater voltage | 6.3 V | 6.3 V |
| Heater current | 0.66 A | 0.66 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 6GW8 specifications →