QIC-24 data analysis

Jay Jaeger cube1 at charter.net
Sun Aug 16 23:20:24 CDT 2015



On 8/16/2015 6:29 PM, Chuck Guzis wrote:
> On 08/16/2015 03:20 PM, Jay Jaeger wrote:
> 
>> One issue with the capstan idea, though, would be direction.
>> Capstans really want to pull.  Not very good a pushing.  ;)  So if
>> you did that, and you wanted to direction operation (required if you
>> can't stream the entire tape), then you'd need two sets of capstans
>> like the big IBM and the like 7 and 9 track tape drives had.
> 
> Or CDC... :)
> 
> Or maybe just a tachometer and let the reel motors do the work.  QIC
> data is pretty much self-clocking (but for those HP 2-track drives).
> 

Exactly.

> Still mulling it over--the number of QIC cartridges I've had to handle
> has gone down substantially over the years.
> 
> --Chuck
> 
> 


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