[QuadList] AMPEX Mark Ten 5 mil head

[dcfwtx at aol.com]

Hello Lydia,

According to my notes, the 7.5 I.P.S. (half-speed) option was introduced 
for the 
VR-1000 series VTRs in 1963 as a retrofit. 

David Crosthwait
www.dcvideo.com



In a message dated 12/3/2009 2:07:46 AM Pacific Standard Time, 
Lydia.Pappas at cityoflondon.gov.uk writes:

> I have several hundred Quad tapes which, as far as I can find out, look
> like they are all recorded at 7 1/2. They are causing me problems trying
> to get them transferred, over here in the UK. They are educational
> recordings and I am wondering if they were recorded that way to save
> money on tape - is this probable?
> 
> Lydia 'the lurker'
> 
> ----------------------------------------------------------------------
> 
> Message: 1
> Date: Wed, 2 Dec 2009 05:15:30 -0000
> From: "Dale Lamm" <dlamm1 at neo.rr.com>
> Subject: Re: [QuadList] AMPEX Mark Ten 5 mil head
> To: "Quad List" <quadlist at quadvideotapegroup.com>
> Message-ID: <D5E183FEC3A84C62B620DEDDA6DA5034 at compaq>
> Content-Type: text/plain;   charset="iso-8859-1"
> 
> [snip]
> 
> Back in the day, I saw very few 7 1/2 ips recordings that were not low
> band...but of course, most of my quad experience back then was in
> educational television.
> 
> [end]
> 
> First time I saw 7.5 IPS in use was in the late 70's at a cable company
> head end. HBC on a TR-600, might have been Warner Brothers ownership.
> The operator said they could get an entire feature movie on a "90
> minute" roll of tape. Since there was just one TR-600, reel changes
> would have been a problem.
> 
> 
> 
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