In article <
cg7t985cs44drs3nk...@4ax.com>, Graham. wrote:
> >> When I started work at PYE TVT I first saw what 625 line could do!,
> >> amazed at how good it was but of course with the Neg going modulation it
> >> did seem less vibrant than what the Pos 405 line did but the detail was
> >> astounding for those times!.
> >
> >Until they added colour of course. For some years during the introduction
> >of colour, my TV was a Rank Cintel monochrome studio monitor connected to
> >a home-built tuner, and the detail was noticeably better when there was no
> >colour. Some black and white movies looked superb on this setup, and never
> >as good again on any colour display I've used since.
> >
> >Rod.
>
> I don't doubt that the definition was better than a domestic TV but
> IMHO the thing that would have set the studio monitor apart from a TV
> is it's ability to maintain a proper black level.
>
> I can only think of one mono TV that I dealt with regularly that gave
> a reasonable account of itself in that respect, and it was a Decca,
> chassis number long forgotten.
>
> Most other mono sets made little or no effort in providing black level
> clamping or simple DC restoration, and the mean-level AGC system often
> used also conspired to the same end.
have black level clamp circuitry, because I put it there. Nevertheless the
deflection tube. My external tuner may also have had a better HF response.