More tapes - This time all Tektronix 405x series

[Pete Lancashire]

http://bitsavers.informatik.uni-stuttgart.de/pdf/tektronix/405x/070-2065-00_4051_Service_Vol1_May77.pdf

pages 6-37 to 6-41

The format and drive was all done in house. It was originally done on a
horizontal external GPIB drive, the 4923. Tek was on of the first
users of the cartridge. But for non technical reasons was the format used
on the 4051 even though by then better designs had been
adopted.

Sadly not one of the good things that came out of Tek. But knowing the
history all was not a technical decsision like in many large
companies, and as usual a long story.







On Mon, Apr 3, 2017 at 9:10 PM, AJ Palmgren <microtechdart at gmail.com> wrote:

> Ah, yes.  I'm fascinated by the stranger formats.
>
> Now I'm even more curious, now that you say it isn't the more common
> QIC-11 or QIC-24 formats.
>
> Do you know what specific hardware (tape drive models, formatter boards,
> etc) that was used to write or read these tapes with this format?
>
>
>
>
> On Mon, Apr 3, 2017 at 5:53 AM, Pete Lancashire <pete at petelancashire.com>
> wrote:
>
>> I'm going to see if the Tektronix museum is interested. And if so I'm
>> sure they can make the software available for download. As to the format,
>> Tek decided to do it their own way. It is a funky 2 track that has issues
>> of its own. But your method of recovering the raw track data should work as
>> a starting point.
>>
>> -pete
>>
>> On Sun, Apr 2, 2017 at 11:16 PM, AJ Palmgren via cctalk <
>> cctalk at classiccmp.org> wrote:
>>
>>> Pete,
>>>
>>> These tapes look to be in beautiful condition!  Do you have any plans for
>>> reading or archiving them?
>>>
>>> Do you have any idea what format the data might have been written in?
>>>
>>> If interested, my site for reading/restoring QIC cartridges of this very
>>> vintage is at
>>>
>>> http://QICreader.com
>>>
>>> Let me know if I can be of any assistance.
>>>
>>> -AJ
>>>
>>> 2017-04-02 21:08 GMT-07:00 Pete Lancashire via cctalk <
>>> cctalk at classiccmp.org
>>> >:
>>>
>>> > https://goo.gl/photos/m91e3UPSvN6tHUaS7
>>> >
>>>
>>>
>>>
>>> --
>>>
>>> Thanks,
>>> AJ Palmgren
>>> http://fb.me/SelmaTrainWreck
>>> https://www.facebook.com/profile.php?id=100010931314283
>>> https://www.linkedin.com/in/aj-palmgren-4a085516/
>>>
>>>
>>
>
>
> --
>
> Thanks,
> AJ Palmgren
> http://fb.me/SelmaTrainWreck
> https://www.facebook.com/profile.php?id=100010931314283
> https://www.linkedin.com/in/aj-palmgren-4a085516/
>
>