On Sat Jan 27 20:52:24 2024 NY wrote:
> On 27/01/2024 12:48, Mark Carver wrote:
> > On 26/01/2024 14:37, Bill Posters wrote:
> >> On Fri Jan 26 13:37:38 2024 "J. P. Gilliver" wrote:
> >>> I thought the "instant replay" - used for sporting events, football
> >>> goals mainly - used a spinning magnetic disc (capable of storing, I
> >>> don't know, a second or less)?
> >>
> >> Ampex HS-100, 36 seconds PAL, 30 seconds NTSC
> >
> > Yep, only ever I gather three in the UK, the Beeb had one, LWT had
> > another, and the third was owned by a facilites house in Soho ?
>
> As few as that? I imagined that they were an integral part of any
> scanner van that was used for sports where action replays were needed.
> Or are you saying that there were many other models of slo-mo, and that
> it is specifically the Ampex HS-100 of which there were only three
> instances in the UK?

There were other types, the deeply inferior Machtronics, for example.

http://www.vtoldboys.com/slo60_7.htm

The disk (behind VT 9 and VT10) was a bookable resource, I'm pretty sure that it was only moved once for an early colour Wimbledon. It could obviously be routed back to an OB as a source on their mixer.

This was in the days before AST, so even higher quality 1" helical scan machines (e.g IVC-700 series) couldn't do slo-mo - even the IVC-9000 (2 inch helical scan - a bit like B formnat) wasn't capable.

There was, as has been pointed out, an abortive attempt to do it on Quad for the 1966 World Cup.

http://www.vtoldboys.com/slo6001.htm

http://www.vtoldboys.com/smvid01.htm

On 27/01/2024 20:52, NY wrote:
> On 27/01/2024 12:48, Mark Carver wrote:
>> On 26/01/2024 14:37, Bill Posters wrote:
>>> On Fri Jan 26 13:37:38 2024 "J. P. Gilliver"  wrote:
>>>> I thought the "instant replay" - used for sporting events, football
>>>> goals mainly - used a spinning magnetic disc (capable of storing, I
>>>> don't know, a second or less)?
>>>
>>> Ampex HS-100, 36 seconds PAL, 30 seconds NTSC
>>
>> Yep, only ever I gather three in the UK, the Beeb had one, LWT had
>> another, and the third was owned by a facilites house in Soho ?
>
> As few as that? I imagined that they were an integral part of any
> scanner van that was used for sports where action replays were needed.
> Or are you saying that there were many other models of slo-mo, and that
> it is specifically the Ampex HS-100 of which there were only three
> instances in the UK?

The HS100s usually stayed at home ! They were not the sort of devices to
have on board a truck. There's an article in one of the IBA Yearbooks,
where ITV were covering an international football match in Glasgow. The
HS100 remained 400 miles away at LWT, and a video link established back
and forth to it from the football ground.

On Mon, 29 Jan 2024 12:21:50 +0000, Mark Carver wrote:

> The HS100s usually stayed at home ! They were not the sort of devices to
> have on board a truck. There's an article in one of the IBA Yearbooks,
> where ITV were covering an international football match in Glasgow. The
> HS100 remained 400 miles away at LWT, and a video link established back
> and forth to it from the football ground.

I worked on the 1976 Winter Olympics in Austria and we had a HS100 in the
VTR truck along side three Ampex 2" quad machines. We had to keep the
truck warm because it was -17C where we were parked half way up a mountain!

--
TOJ.