Tube cross-reference
8B8 alternatives, equivalents, and replacements
Review exact electrical variations and directional substitutions recorded for the 8B8 power - tv vertical output. Compare core specifications and verify every restriction before using a replacement.
Exact variations of 8B8
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.
XCL82 Power - TV Vertical Output
- Base
- Not recorded
- Socket
- B9A
- Base pins
- 9
- Sections
- 2
- Heater voltage
- 8 V
- Heater current
- 0.3 A
Replacement tubes for 8B8
The following tubes are recorded as possible replacements for 8B8. This direction does not establish that 8B8 can replace them.
Power - TV Vertical Output
The database records XCL82 as a possible replacement for8B8.
No special restrictions are recorded for this substitution.
| Specification | Original tube | Replacement |
|---|---|---|
| Tube type | Power - TV Vertical Output | Power - TV Vertical Output |
| Construction | Pentode-Triode | Pentode-Triode |
| Base | 9EX | Not recorded |
| Socket | B9A | B9A |
| Base pins | 9 | 9 |
| Sections | 2 | 2 |
| Heater voltage | 16 V | 8 V |
| Heater current | 0.3 A | 0.3 A |
Where 8B8 can be used as the replacement
In these recorded relationships, 8B8 is the replacement tube. The listed original tubes are not automatically suitable as replacements for 8B8.
Power - TV Vertical Output
The database records 8B8 as a possible replacement forXCL82.
No special restrictions are recorded for this substitution.
| Specification | 8B8 replacement | Original tube |
|---|---|---|
| Tube type | Power - TV Vertical Output | Power - TV Vertical Output |
| Construction | Pentode-Triode | Pentode-Triode |
| Base | 9EX | Not recorded |
| Socket | B9A | B9A |
| Base pins | 9 | 9 |
| Sections | 2 | 2 |
| Heater voltage | 16 V | 8 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 8B8 specifications →