Tube cross-reference
885 alternatives, equivalents, and replacements
Review exact electrical variations and directional substitutions recorded for the 885 specialized - thyratron. Compare core specifications and verify every restriction before using a replacement.
Replacement tubes for 885
The following tubes are recorded as possible replacements for 885. This direction does not establish that 885 can replace them.
Specialized - Thyratron
The database records 2B4 as a possible replacement for885.
No special restrictions are recorded for this substitution.
| Specification | Original tube | Replacement |
|---|---|---|
| Tube type | Specialized - Thyratron | Specialized - Thyratron |
| Construction | Thyratron | Thyratron |
| Base | 5A2 | 5A |
| Socket | UX4 | IO |
| Base pins | 5 | 5 |
| Sections | 1 | 1 |
| Heater voltage | 2.5 V | 2.5 V |
| Heater current | 1.5 A | 1.4 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 885 specifications →