![](https://coimages.sciencemuseumgroup.org.uk/85/large_thumbnail_1923_0350.jpg)
Air-insulated x-ray tube insert with copper anode and grid control of the filament emission
- maker:
- Machlett X-Ray Tubes Limited
![Air-insulated x-ray tube insert with copper anode and grid](https://coimages.sciencemuseumgroup.org.uk/436/423/medium_smg00026200.jpg)
Air-insulated x-ray tube insert with copper anode and grid control of the filament emission. Type ED-5 No. CY5328. Made in England by Machlett X-Ray Tubes (Great Britain) Ltd., Wembley, London, England, 1950-1974, under licence from The Machlett Laboratories Inc., United States. Designed for educational use.