![](https://coimages.sciencemuseumgroup.org.uk/50/675/large_thumbnail_1972_0141_0248__0002_.jpg)
McVitie Weston valve collection, Marconi valve, type 6K6G
- Made:
- circa 1940
- maker:
- Marconi Company Limited
![SMG00313410](https://coimages.sciencemuseumgroup.org.uk/491/980/small_thumbnail_smg00313410.jpg)
![Marconi valve, type 6K6G, (RMW/Y665A - McVitie Weston number)](https://coimages.sciencemuseumgroup.org.uk/486/589/small_thumbnail_smg00313410.jpg)
Marconi valve, type 6K6G, (RMW/Y665A - McVitie Weston number), by Marconi Company Limited, c. 1940.
Marconi valve, type 6K6G, (RMW/Y665A - McVitie Weston number), by Marconi Company Limited, c. 1940.