McVitie Weston valve collection, Pilotron valve, type P-227
- maker:
- Pilot Radio Corporation
Pilotron valve, type P-227, (RMW/Y159 - McVitie Weston number), by Pilot Radio Corporation.
Pilotron valve, type P-227, (RMW/Y159 - McVitie Weston number), by Pilot Radio Corporation.