Ampex Timeline

Bob Rosenbloom bobalan at sbcglobal.net
Sun Feb 4 20:43:39 CST 2007


I have an ad from a March, 1956 magazine for an AMPEX digital tape 
system on my web site:

http://www.dvq.com/ads/ampex_sa_3_56.jpg

So the some digital transports were available before 1959.

Bob


Roger Holmes wrote:

>
> On 4 Feb, 2007, at 18:15, cctalk-request at classiccmp.org wrote:
>
>>
>> Message: 7
>> Date: Sun, 04 Feb 2007 12:52:33 -0500
>> From: "Bob Bradlee" <caveguy at sbcglobal.net>
>> Subject: Re: Ampex Timeline
>> To: "General Discussion: On-Topic and Off-Topic Posts"
>>     <cctalk at classiccmp.org>
>> Message-ID: <200702041754.l14Hsgkx054201 at keith.ezwind.net>
>> Content-Type: text/plain; charset="us-ascii"
>>
>> On Sun, 04 Feb 2007 09:32:29 -0800, Chuck Guzis wrote:
>>
>>> Another possiblity--the Ampex tape drives wouldn't have been standard
>>> at the time; it would have been IBM 729's.
>>
>>
>> Although there is little online about the earlt Ampex drives  because 
>> they were goverment only.
>>
>> The following id from the Ampex timeline:
>>
>> 1950  Ampex introduces the first "dedicated" instrumentation  
>> recorder, Model 500, built for the U.S. Navy.
>>
>> 1954 Ampex introduces the first multi-track audio recorder derived  
>> from multi-track data recording
>> technology.
>>
>> Some food for thought ...
>>
>> Bob
>
>
> The machine in question was I understand 1959/60. I don't know the  
> official
> release dates for the digital Ampex drives but ICT used them on the  
> ICT1301
> which was released in 1962, though the tape drives were not immediately
> available. These were one inch tape drives (Ampex TM1 I think) and  
> half inch
> drives (Ampex TM4). These used the aluminium spools with three notches
> in the hub not the later industry standard expanding hub type spools.  
> The
> one inch tapes were 16 track and the half inch tapes were 10 track. They
> used thyrotron valves to fire the pinch rollers. The TM4s also had a  
> version
> used on the Lyons Leo computers of that era, these used the same tape
> spools but with a small expanding hub, like a scaled down version of the
> 7 track and 9 track ones. Professional reel to reel audio equipment used
> a quarter inch version of the same spools until recently, or maybe they
> still do for all I know about audio recorders.
>
> By the way, as Dr Who has been deemed to be on topic:
>
> ICT 1301 consoles appeared on Dr Who and Blakes 7. I think I saw one in
> a James Bond film too, but I have been trying to find which one but  
> have so
> far drawn a blank. In the villains HQ there was a big round room on  
> two floors
> and in the middle were some control panels, the whole place got blown  
> up as
> is normal in a 007 film. Must have been filmed about the time 1301s were
> being scrapped 1965 to the early 70s.
>
> Roger Holmes (owner of an ICT 1301 for over 30 years)
>
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