Tube cross-reference
EL3C alternatives, equivalents, and replacements
Review exact electrical variations and directional substitutions recorded for the EL3C rectifier - full wave. Compare core specifications and verify every restriction before using a replacement.
Exact variations of EL3C
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.
4B24 Rectifier - Full Wave
- Base
- Not recorded
- Socket
- A
- Base pins
- Not recorded
- Sections
- 2
- Heater voltage
- Not recorded
- Heater current
- Not recorded
Replacement tubes for EL3C
The following tubes are recorded as possible replacements for EL3C. This direction does not establish that EL3C can replace them.
Rectifier - Full Wave
The database records 4B24 as a possible replacement forEL3C.
No special restrictions are recorded for this substitution.
| Specification | Original tube | Replacement |
|---|---|---|
| Tube type | Rectifier - Full Wave | Rectifier - Full Wave |
| Construction | Rectifier-Rectifier | Rectifier-Rectifier |
| Base | A4-81 | Not recorded |
| Socket | A | A |
| Base pins | 4 | Not recorded |
| Sections | 2 | 2 |
| Heater voltage | 2.5 V | Not recorded |
| Heater current | 11.5 A | Not recorded |
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 EL3C specifications →