Post WWI, let's say that Jupille was turning out 1k to 1.2k braces of scattergun tubes per day so that 350k tubesets per year. Let's also assume that it commenced in 1920 and continued for 10 years to 1930. That's 3.5 million scattergun tubesets and not all were Krupp mind you but where were they going?

Kind Regards,

Raimey
rse