Manufacturing C.R.T.'s... "Philips"-"Mullard" way

[Mr Hoover]

Originally Posted by ppppenguin

Not sure when last round B&W tube was used in the UK. They were certainly used in 1953 and were obsolete by 1956

Probably the 9 inch Ekco TMB 272 is a good contender for the last from 1955-56
It was a mains/hefty battery "portable."

[ppppenguin]

Originally Posted by Mr Hoover

Probably the 9 inch Ekco TMB 272 is a good contender for the last from 1955-56
It was a mains/hefty battery "portable."

I think you're right. A unique problem with a unique solution that was most easily solved with an older CRT.