[QuadList] Helicals, Quads

Gideon4 gideon4 at summershome.co.uk
Tue Feb 9 16:30:43 CST 2010


Hi Guy

With apologies to Trevor,

The 3U unit below the encoder in the Marconi MkVII rack is the Marconi
designed aperture corrector, all 3U of it. It is rare to see one working as,
with the passage of time, the delay line are unreliable, and there are no
spares!


Pleased to see you have a pair of MkVIIs, I would be interested to know the
serial numbers and if the are Marconi badged or Ampex ones ( Ampex were
supposed to market the camera for Marconi??) Have your cameras got the G101
cable connector? or were the adapted to use the more common (in the USA)
TV81 cable.

I have a MkVII in the collection, It is not in very good condition, due to
poor storage,  and may never work again.
http://www.tvcameramuseum.org/marconi/mk7/m_mkvii1.htm

Regards

Brian Summers
UK Member



Hi Trevor,
Great pictures! That looks like a very nice 70B indeed.
Those things are fun to move, aren't they? :) Looks like you had the
original wheeled dollies though.
I also have a couple of Marconi MkVII chains, but I don't recognize that
unit that's mounted right below the encoder...what is that?
Guy

Trevor Brown wrote:
>
> The TR70 made it to IBC around 1995, a little late
>
http://mail.quadvideotapegroup.com/mailman/listinfo/quadlist_quadvideotapegr
oup.com




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