
McVitie Weston valve collection, Majestic cold-cathode valve, type O.A.

Majestic cold-cathode valve, type O.A., (RMW/A219 - McVitie Weston number), by Majestic Radio & Television Corporation.
Majestic cold-cathode valve, type O.A., (RMW/A219 - McVitie Weston number), by Majestic Radio & Television Corporation.