UK Vintage Radio Repair and Restoration Discussion Forum - View Single Post - Original Moulds found for Tek Scope Tubes

mole42uk · 20th Jun 2021, 8:18 am

Fascinating! I’d never thought that CRT’s were moulded in ceramic but it makes sense. I’ve seen film of the making of valves which seem to use pre-formed glass tubes but I suppose precise display tubes needed different parameters. Perhaps ceramic is the only way to achieve perfection in ‘scope tubes?

There’s a YouTube of the process here: https://youtu.be/G0Dci5RPe94

20th Jun 2021, 8:18 am	#2
mole42uk Nonode Join Date: Aug 2010 Location: Resolven, Wales; and Bristol, England Posts: 2,612	Re: Original Moulds found for Tek Scope Tubes Fascinating! I’d never thought that CRT’s were moulded in ceramic but it makes sense. I’ve seen film of the making of valves which seem to use pre-formed glass tubes but I suppose precise display tubes needed different parameters. Perhaps ceramic is the only way to achieve perfection in ‘scope tubes? There’s a YouTube of the process here: https://youtu.be/G0Dci5RPe94 __________________ Richard Index: recursive loop: see recursive loop Last edited by mole42uk; 20th Jun 2021 at 8:23 am.