R.C.A. TK42 versus TK41. R.C.A. TK42 versus Norelco PC-60 and 70

[nasadowsk]

I found this link on ewetube:

https://youtu.be/ZtNIuXHgRlM

I’m curious of anyone knows the cameras and VTR used (quad of some sort, AMPEX?)

Also, why are there gaps in the recording? I’m guessing that’s where commercials were put in (local of the network feed?)

More curiously- why was it “take 1”?

Any comments on the picture quality?

[colortrakker]

Originally Posted by nasadowsk

I found this link on ewetube:

https://youtu.be/ZtNIuXHgRlM

I’m curious of anyone knows the cameras and VTR used (quad of some sort, AMPEX?)

Also, why are there gaps in the recording? I’m guessing that’s where commercials were put in (local of the network feed?)

More curiously- why was it “take 1”?

Any comments on the picture quality?

Cameras were Norelco PC-60s since this was done at CBS Television City (look real quick behind the slate at the start or when her dad runs up on stage at the end and you'll see them). Good guess the VTRs were Ampexes of the 2" quad persuasion. Don't know which ones, though. Gaps are indeed for commercial breaks. This appears to be a network master tape, originally run from a CBS network control room in New York or LA. Since game shows like this are live-to-tape, it's assumed that this would have been the first and only take of that show number, barring any technical disasters requiring an extended stopdown.

Quality-wise, this looks pretty typical for an early '70s videotaped show: little banding on the left, some vignetting that viewers wouldn't have seen then. CBS was most consistent of the networks in quality.

[old_tv_nut]

Originally Posted by colortrakker

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Quality-wise, this looks pretty typical for an early '70s videotaped show: little banding on the left, some vignetting that viewers wouldn't have seen then. CBS was most consistent of the networks in quality.

By "little banding on the left" I presume you're referring to the vertical stripes near the left side, mainly in one camera?

When I saw the word "banding' I immediately went back to see if I could find quad tape banding, and I don't see any. If you can spot any, post the time stamp.

Regarding the image corner vignetting, one of the cameras also has some misregistration in the extreme upper right.

The shading across the image of all the cameras looks excellent.

Did these cameras have a built-in diascope pattern projector and automatic registration?

That was a feature of the first Saticon tube HD cameras that were produced in the early 90s. It would have been impossible to get useful HD resolution without it. The auto setup did both registration and shading.
They also had lens tables that adjusted the scan width and height of the R, G, and B separately according to the lens zoom setting to compensate for chromatic aberration. IIRC, there also was a lookup table for compensating the gradual overall vignetting of the lens at different zooms and aperture settings.