Tube cross-reference
CK1003 alternatives, equivalents, and replacements
Review exact electrical variations and directional substitutions recorded for the CK1003 rectifier - full wave. Compare core specifications and verify every restriction before using a replacement.
Replacement tubes for CK1003
The following tubes are recorded as possible replacements for CK1003. This direction does not establish that CK1003 can replace them.
Rectifier - Full Wave
The database records 0Z4A as a possible replacement forCK1003.
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 | 8XD | 8XD |
| Socket | Not recorded | IO |
| Base pins | 8 | 8 |
| Sections | 2 | 2 |
| Heater voltage | Not recorded | Not recorded |
| Heater current | Not recorded | 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 CK1003 specifications →