McVitie Weston valve collection, Autoveyors thermionic relay valve
- maker:
- Autoveyors Limited
Autoveyors thermionic relay valve, 4-pin base with 2 additional side terminals, (RMW/E94 - McVitie Weston number), by Autoveyors Limited.
Autoveyors thermionic relay valve, 4-pin base with 2 additional side terminals, (RMW/E94 - McVitie Weston number), by Autoveyors Limited.