McVitie Weston valve collection
- Made:
- 1949
- maker:
- Gustav Ganz and Company
Ostar-Ganz RF pentode valve, type H3, B7 base, with knitted cooper wire shield, (RMW/Y231 - McVitie Weston number), by Gustav Ganz & Co., 1949.
Ostar-Ganz RF pentode valve, type H3, B7 base, with knitted cooper wire shield, (RMW/Y231 - McVitie Weston number), by Gustav Ganz & Co., 1949.