McVitie Weston valve collection
- maker:
- Mullard Limited
Mullard triode, type RA, UV base, marked G285, (RMW/B122 - McVitie Weston number), by Mullard Limited.
Mullard triode, type RA, UV base, marked G285, (RMW/B122 - McVitie Weston number), by Mullard Limited.