Tube cross-reference
EN70 alternatives, equivalents, and replacements
Review exact electrical variations and directional substitutions recorded for the EN70 specialized - thyratron. Compare core specifications and verify every restriction before using a replacement.
Where EN70 can be used as the replacement
In these recorded relationships, EN70 is the replacement tube. The listed original tubes are not automatically suitable as replacements for EN70.
Voltage Pentode - Sharp Cutoff (single)
The database records EN70 as a possible replacement for5634.
No special restrictions are recorded for this substitution.
| Specification | EN70 replacement | Original tube |
|---|---|---|
| Tube type | Specialized - Thyratron | Voltage Pentode - Sharp Cutoff (single) |
| Construction | Thyratron | Pentode |
| Base | Not recorded | 5633 |
| Socket | Not recorded | SUBMINIATURE6 |
| Base pins | Not recorded | 6 |
| Sections | 1 | 1 |
| Heater voltage | 6.3 V | 6.3 V |
| Heater current | 0.15 A | 0.15 A |
Specialized - Thyratron
The database records EN70 as a possible replacement for5643.
No special restrictions are recorded for this substitution.
| Specification | EN70 replacement | Original tube |
|---|---|---|
| Tube type | Specialized - Thyratron | Specialized - Thyratron |
| Construction | Thyratron | Thyratron |
| Base | Not recorded | Not recorded |
| Socket | Not recorded | B8D |
| Base pins | Not recorded | 8 |
| Sections | 1 | 1 |
| Heater voltage | 6.3 V | 6.3 V |
| Heater current | 0.15 A | 0.15 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 EN70 specifications →