
McVitie Weston valve collection, Mullard Experimental valve
- Made:
- 1931
- maker:
- Mullard Limited

Mullard Experimental valve, marked 4006T IV, (RMW/H36 - McVitie Weston number), by Mullard Limited, 1931.
Mullard Experimental valve, marked 4006T IV, (RMW/H36 - McVitie Weston number), by Mullard Limited, 1931.