[QuadList] QuadList Digest, Vol 71, Issue 19

[Mike]

The orbitors used with the early orths (because of image burn-in) were were not used on my NBC 41s, because before the late 60s the later orthicons were not subject to halo or burn.  The orbitor was a piece of flat glass with non-parallel surfaces located inside the camera just behind the turret, in front of the beam splitter (dichroic & front-surface mirrors in those days).  Even turned on (by the switch on the "CCU", the clock motor's 1 RPM speed was basically un-detectable.
Thanks! 
-mike boland
Dave Sieg <dave at zfx.com> wrote:Looks to me like a synchronous gearhead motor like would drive an orbiter but I don't see how that would work unless it actually moved the lens.  Imagine trying to keep your shot framed with a motor constantly moving the image somewhere else!  I once saw a TK-11 with two motors like that attached to centering pots in the camera head.  We forget how far we've come!


On Tue, May 6, 2014 at 5:44 AM, Brian Summers <gideon4 at summershome.co.uk> wrote:

This has been an interesting thread, Thanks very for posting the pictures.

The Gizmo on the lens is hard to identify, the lens is Not a zoon and the
attachment of the device at the front of the lens is wrong for any kind of
iris or focus drive.

Looking carefully at the best resolution pics from Bob the cable does not
enter the camera? It seems to loop through one of the rear feet on the
camera base and head off down and else ware.

It's a bit of a mystery, it could be a microphone or maybe a sensor for a
remote lightmeter, don't forget this is an experimental prototype camera and
the picture is a posed one rather than a real production use.

Best regards

Brian Summers
Virtual Museum of the Broadcast TV Camera
Camberley,
England.

www.tvcameramuseum.org
brian at tvcameramuseum.org
Phone (+44) 01276677879


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Subject: QuadList Digest, Vol 71, Issue 19

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-- 
Dave Sieg
www.linkedin.com/in/davesieg
www.davesieg.com
www.scanimate.com
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