"Dave Plowman (News)" wrote:

In article ,
William Sommerwerck wrote:
Registration on cameras. Convergence on monitors?

Yes. Thanks for the correction.

Did you have videcon colour cameras? First UK ones
were Plumbicon.

Yes, because you started so late.

The first RCA cameras used vidicons (I think) -- though they might have
used image orhticons.

Three 3 inch IO were the ones I remember. Being used for tests long before
colour broadcasting started in the UK.

They later had a four-pickup camera that used an image orthicon to
generate a perfectly registered (by definition) luminance signal, plus
three vidicons.

That's a configuration I never saw. The first colour cameras here were all
four tube plumblicons. I was taught the colour response of a videcon
wasn't suitable.


RCA built their TK44 color studio cameras with Vidicons. They
changed the model number to TK46 when they switched to Plumicons. Most
of the parts were interchangeable, so I used a pair of TK44 cameras for
spare modules & as a test jig to keep three TK46 cameras working the way
we wanted. The TK44s were used by TV stations for years, but needed
brighter studio lighting.


--
Lead free solder is Belgium's version of 'Hold my beer and watch this!'