Z729, GEC MARCONI, EF86, MULLARD, PIN MESH SCREEN, HAMMERSMITH DECEMBER 1954 MANUFACTURE
Z729, GEC MARCONI, EF86, MULLARD, PIN MESH SCREEN, HAMMERSMITH DECEMBER 1954 MANUFACTURE
On offer today one of these striking devices. with a pin mesh screen around the anode plate and rigid internal support. Front face shows the classic GEC Marconi cartouche in white ink with the obverse having the elliptical three colour Marconi decal. A very nice and very scarce variant