![](https://coimages.sciencemuseumgroup.org.uk/50/736/medium_thumbnail_e2013_442_1__0001_.jpg)
McVitie Weston valve collection, Philips valve, type 505
- maker:
- Philips Electronics
![Philips valve, type 505, loose base](https://coimages.sciencemuseumgroup.org.uk/453/132/medium_smg00261294.jpg)
Philips valve, type 505, loose base, (RMW/A120 - McVitie Weston number), by Philips.
Philips valve, type 505, loose base, (RMW/A120 - McVitie Weston number), by Philips.