Re: Pleas ID this IBM system....

[Paul Koning via cctalk]

> On Apr 8, 2019, at 9:40 PM, Jon Elson via cctalk <cctalk@classiccmp.org> 
> wrote:
> 
> On 04/08/2019 06:10 PM, Tom Gardner via cctalk wrote:
>> FWIW the tape drive is an IBM 2315 announced April 16, 1965 
>> <https://www.ibm.com/ibm/history/exhibits/dpd50/dpd50_chronology3.html>  for 
>> use on low end S/360s.  Here is a brochure 
>> <http://ed-thelen.org/comp-hist/IBM-ProdAnn/2415.pdf>  as well as manuals at 
>> http://www.bitsavers.org/pdf/ibm/2415/
>> 
>> 
> So, is that a capstan and pinch roller drive?  I'd kind of guess so, if 
> announced in 1965.

I don't think other companies followed that strange design approach even back 
then, though.  Never mind the pinch roller part; I could never understand why 
IBM would build vacuum columns with the oxide facing out, sliding against the 
vacuum column side walls.

> (for future readers, 2315 is apparently a typo, 2415 would fit in with 24xx 
> models being tape drives, 23xx was for disks.)

Yes, 2315 is the RK05 lookalike found in the 360 model 44.

        paul