G'day all.

I found a couple of excellent sites which share the historical developments of the Fernseh television camera which I thought I'd share for those interested in Fernseh gear. Here they are:
http://www.oebl.de/Fernseh/Kamera/index.html
http://www.fernsehmuseum.info/fese-kameras.html

The language is all in German.

There are two IO colour cameras of real interest I'd thought I'd mention. Firstly it appears Fernseh made a TK-41 type colour camera for Japan when they started colour broadcasts in 1960, the camera can be found halfway down this page http://www.oebl.de/Fernseh/Kamera/index.html . I wonder if anyone has any good info on this camera as it intrigues me? Secondly the Fernseh KC33 super orthicon colour camera http://www.fernsehmuseum.info/fese-kc-33.html there were a few interesting design plans for this model in terms of tube and lens mirror layout, the first diagram showing a prism optics layout and the traditional mirror splitter arrangement, the second another mirror layout and the third one being of a two tube arrangement in which an IO tube is used for the luminance and a tricolour striped vidicon tube used for the chroma and a prism splitter to split the beam of light to both tubes.

Speaking of the IO and tricolour vidicon arrangement, prior to seeing that diagram I have been thinking a lot about the idea of converting B&W IO cameras to colour using the IO for the luminance and a colour CCD for the chroma and a prism splitter to split the beam to both the IO and CCD and seeing this diagram is a perfect example of what I've been thinking of but with a CCD instead of a tricolour vidicon.

Anyways those Fernseh sites pretty much cover every Fernseh broadcast grade camera ever made and are great reference sites for anyone researching Fernseh cameras.

Pasting URL into Google for English:
1976

"1976 COLOR TV camera KCK BOSCH GMBH
KCK took the claim to be in the best studio camera in the world, one of the most expensive. . Nevertheless, this camera also significant numbers from all long been used in German studios over 20 years."

Sleek styling of KCP said to be the work of "Genius" Hans Erich Slany - Famous industrial designer

3 x 3" Image Orthicon transistorized
_____________________________________
Spectacular !

_____________________________

" 1968 - The first Fese own 3-tubes-lmage-orthicon television studio color camera KC 33 was a flop

This color camera tubes KC33 (KC stood for camera color) was around 1966 of the Bosch GmbH on the basis of television tubes, designed and built orthicon color camera.

. That was shortly before the introduction of color television in Germany.

. According to our information, but no tinkering inside GE (General Electric) and also no RCA 4-tube chassis, as long suspected of "ignorance" was.

. There were three 3 " Super-orthicon Fese from own production (which still had its own Fese HV (high vacuum) and their own laboratory glass blowing and could not walk well, how very soon became apparent.



Here, the then display text from the STM 3 / 1967

Such experiments also

[My Emphasis]
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ~~~~~~~~~~~~~~~~~~~~~~~~
. The color camera KC 33 040 is a new design from scratch - a three-tube color camera orthicon-lmage. . It is characterized by particularly good color reproduction across the entire spectral range. This applies especially for red hues, and thus also for the complexion.
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ~~~~~~~~~~~~~~~~~~~~~~~~



. The light sensitivity is unmatched by any comparable camera. . While the intensity of illumination in the studio for optimum picture quality is 800 lux, are themselves transferred to 250 Lux to have good pictures. . The camera is thus equally suitable for use in the studio and for outside broadcasts. . The compatible black and white picture is characterized by the familiar image orthicon character. . The characteristic of the super-orthicon makes the camera less sensitive to variations in lighting.

. The camera design and construction of the transistorized circuit guarantee excellent long term stability. The camera fits in terms of their design harmoniously with the new cassette series of our color devices. By the same image position and parallel tubes in combination with very good shielding by mu-metal and the ferrite is completely eliminated. . The same applies to other external AC fields.

l. Unusually rich operation and adjustment tools to facilitate the handling of the camera in operation: built-in conversion filters and neutral density filter, built Prüfprojektor with three slides, on-screen marker for focal-length display in the electronic viewfinder, a color value signal switcher to cover inspection, oscillograph with triple-electron switch for simultaneous display of red, green and blue, two-level systems for pre-and main amplifier, for gradation control, auto cable-term balance, color adjustment (matching) amplifier, a thin and very flexible camera cable.




. The foregoing is certainly expressed the wishful thinking of this successful (star) from the seller Fese, but in 1967 was the current capabilities of the KC33 diametrically opposed. . It was a flop with three orthicon.



, the beginning of 1967 four cameras were delivered to the NDR. . . . .
and came back by return mail. Two (or three) unnamed doctors of the old guard wanted to developers with a certain dogged persistence (Others speak of counseling resistance) with the (orthicon) head through the wall. . And the 3 "orthicon could address the benchmarks (the ink coverage ie convergence) does not. The so-called target was too big and 3 tubes were the three scanned images too (color) are different, not identical and could not then be corrected. "




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G'day all.

...Firstly it appears Fernseh made a TK-41 type colour camera for Japan when they started colour broadcasts in 1960, the camera can be found halfway down this page ...

The translation seems to indicate that the Japanese built their own camera - not that Fernseh built one for them. The NHK museum in Tokyo has a TK-41 that they state was purchased from RCA.

http://www.bretl.com/NHK%20Museum%20Gallery/index.htm