Tube cross-reference
Z804U alternatives, equivalents, and replacements
Review exact electrical variations and directional substitutions recorded for the Z804U specialized - switching tube. Compare core specifications and verify every restriction before using a replacement.
Where Z804U can be used as the replacement
In these recorded relationships, Z804U is the replacement tube. The listed original tubes are not automatically suitable as replacements for Z804U.
Specialized - Switching Tube
The database records Z804U as a possible replacement for7713.
No special restrictions are recorded for this substitution.
| Specification | Z804U replacement | Original tube |
|---|---|---|
| Tube type | Specialized - Switching Tube | Specialized - Switching Tube |
| Construction | Thyratron | TriggerPulseSwitch |
| Base | Not recorded | Not recorded |
| Socket | B9A | Not recorded |
| Base pins | Not recorded | Not recorded |
| Sections | 1 | 1 |
| 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 Z804U specifications →