THE GREAT MULLARD MAGIC BLOG — GATHER MARKS

DEAD PIXELS RUINING MY SCREEN - THIS NEVER HAPPENED IN THE OLD DAYS! (ii)

Posted by STEVE M on

DEAD PIXELS RUINING MY SCREEN - THIS NEVER HAPPENED IN THE OLD DAYS! (ii)

Today, let's look at the process for tube screen (or faceplate) manufacture that was employed by Mullard in the early 1950s.   If we had visited Mullard's tube manufacturing area we would have seen a tank holding 250 tons of molten glass and nearby, a work bench holding moulds which were contoured to match the required screen shape.   Glass blowers working in this area armed with iron rods, topped with a ball of fire clay would dip their implement into the molten glass tank and withdraw a bolus of molten glass known as a 'gather'.    The 'gather' would be held...

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