Tube cross-reference
EL3B alternatives, equivalents, and replacements
Review exact electrical variations and directional substitutions recorded for the EL3B rectifier - half wave. Compare core specifications and verify every restriction before using a replacement.
Exact variations of EL3B
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.
6013 Specialized - Thyratron
- Base
- Not recorded
- Socket
- UX4
- Base pins
- 4
- Sections
- 1
- Heater voltage
- 9 V
- Heater current
- 2 A
Replacement tubes for EL3B
The following tubes are recorded as possible replacements for EL3B. This direction does not establish that EL3B can replace them.
Specialized - Thyratron
The database records 6013 as a possible replacement forEL3B.
No special restrictions are recorded for this substitution.
| Specification | Original tube | Replacement |
|---|---|---|
| Tube type | Rectifier - Half Wave | Specialized - Thyratron |
| Construction | Rectifier | Thyratron |
| Base | A4-10 | Not recorded |
| Socket | UX4 | UX4 |
| Base pins | 4 | 4 |
| Sections | 1 | 1 |
| Heater voltage | 2.5 V | 9 V |
| Heater current | 9 A | 2 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 EL3B specifications →