Tube cross-reference
EZ4 alternatives, equivalents, and replacements
Review exact electrical variations and directional substitutions recorded for the EZ4 rectifier - full wave. Compare core specifications and verify every restriction before using a replacement.
Replacement tubes for EZ4
The following tubes are recorded as possible replacements for EZ4. This direction does not establish that EZ4 can replace them.
6CA4
American To ForeignRectifier - Full Wave
The database records 6CA4 as a possible replacement forEZ4.
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 | Not recorded | 9M |
| Socket | Not recorded | B9A |
| Base pins | Not recorded | 9 |
| Sections | 2 | 2 |
| Heater voltage | 6.3 V | 6.3 V |
| Heater current | 0.9 A | 1 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 EZ4 specifications →