Tube cross-reference
E55L alternatives, equivalents, and replacements
Review exact electrical variations and directional substitutions recorded for the E55L power - pentode (not beam). Compare core specifications and verify every restriction before using a replacement.
Exact variations of E55L
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.
8233 Power - Pentode (NOT beam)
- Base
- Not recorded
- Socket
- B9D
- Base pins
- 9
- Sections
- 1
- Heater voltage
- 6.3 V
- Heater current
- 0.6 A
Replacement tubes for E55L
The following tubes are recorded as possible replacements for E55L. This direction does not establish that E55L can replace them.
Power - Pentode (NOT beam)
The database records 8233 as a possible replacement forE55L.
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 |
| Base | NOVAL | Not recorded |
| Socket | B9A | B9D |
| Base pins | 9 | 9 |
| Sections | 1 | 1 |
| Heater voltage | 6.3 V | 6.3 V |
| Heater current | 0.6 A | 0.6 A |
Where E55L can be used as the replacement
In these recorded relationships, E55L is the replacement tube. The listed original tubes are not automatically suitable as replacements for E55L.
Power - Pentode (NOT beam)
The database records E55L as a possible replacement for8233.
No special restrictions are recorded for this substitution.
| Specification | E55L replacement | Original tube |
|---|---|---|
| Tube type | Power - Pentode (NOT beam) | Power - Pentode (NOT beam) |
| Construction | Pentode | Pentode |
| Base | NOVAL | Not recorded |
| Socket | B9A | B9D |
| Base pins | 9 | 9 |
| Sections | 1 | 1 |
| Heater voltage | 6.3 V | 6.3 V |
| Heater current | 0.6 A | 0.6 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 E55L specifications →