UK Vintage Radio Repair and Restoration Discussion Forum - View Single Post

Restoration73 · 23rd Oct 2018, 1:33 pm

I remember manufacturers of early colour sets (with PL509, PD500 and GY501 valves in
a shielded compartment) recommended viewing these valves in operation through lead
glass as X-rays were emitted.

23rd Oct 2018, 1:33 pm	#75
Restoration73 Nonode Join Date: Jun 2013 Location: Surbiton, SW London, UK. Posts: 2,801	Re: Don't try this at home... I remember manufacturers of early colour sets (with PL509, PD500 and GY501 valves in a shielded compartment) recommended viewing these valves in operation through lead glass as X-rays were emitted.