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Old 04-23-2014, 06:48 PM
dieseljeep dieseljeep is offline
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Join Date: Jul 2010
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Quote:
Originally Posted by Alastair E View Post
Ah--Reading That takes me back a bit! Years ago I had an American built for the UK market a set called a 'Teleton' It was a 12 or 14" set with a delta type CRT and full of valves although it was actually a hybrid set, with a modified NTSC to sorta simple PAL decoder--Had horrible colour rendering too
(I think these sets gave the UK based TV Trade joke--Never Twice Same Colour--NTSC....!)

--I have no idea who actually made the set, but that had one of those horrible unipotential CRT's that were popular in the 70's no focus-control-The CRT was tired and dark with terrible focus when I had it, even re-juvenating didnt help much....

There were a few UK made and Japanese sets that used them too, Horrible focus on 'em.

I did actually modify an Hitachi set that used a unipot CRT and fitted a Mullard A56-120X, a 22" Delta gun high-focus tube and IMO probably the best European CRT ever made. The picture difference was astounding!
--I took a HV diode from input to tripler and used a Grundig 'Metrosyl' focus-control, Worked brilliantly.

Sure there's an American equivalent to the A56-120X with a number like 560HWB22,--or summit but forget the actual number--I do remember the '560' and the '22' but forget the important type letters....
I would like to see a picture of the U.S. built set with the pseudo PAL decoder.
Maybe it was a Japanese firm, that wanted a place in the European, British market. Japan uses a form of NTSC.
The Kuba Porta-color that everyone refers to, has no resemblance to the U.S. model, outside of the cabinet, CRT, yoke, convergence assembly and flyback transformer.
BTW, that's what makes this hobby interesting.
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