On 22/06/2017 20:22, DerbyBorn wrote:
"Jim GM4DHJ ..." wrote in
news

"DerbyBorn" wrote in message
2.236...
Remember trying to improve an old TV by adjusting the Convergenece
Controls.
I recall, my old Murphy had about 20 potentiometers and other
ajustements.

magic eye valve radio....Mmmmmmmmmmm

The CRT was amazing how it became so good and could be mass produced.
Reminds me ot that old Cadbury Smash advert - Aliens laughing as it was
explained that electrons would fire through some magnetic coils and through
holes in a mask to hit little dots of phospor to make them glow.

The truly amazing one was the Sinclair flat screen CRT TV - FTV1

http://www.thevalvepage.com/tv/sinclair/ftv1/ftv1.htm

A friend of mine had one. It was impressive if a bit on the small side.

Another won an earlier MTV1 on the very first Krypton Factor Show.

--
Regards,
Martin Brown