Looking for a ST419

Chuck Guzis cclist at sydex.com
Fri Oct 31 03:12:21 CDT 2008


On 30 Oct 2008 at 17:44, Jules Richardson wrote:

> I think the end of the last discussion on this resulted in the conclusion that 
> it could be done, but required frequencies high enough to rule out just 
> slapping some TTL together on a bit of prototype board...

ISTR the bitrate from a ST412 drive was about 5 MHz, or one bit every 
200 nsec/8 bits per 1.2 usec.  That doesn't seem to be all that high 
to me--at least not in terms of today's logic.  I think I remember 
that RLL 2,7 drives had to be able to handle 7.5 MHz data.

Cheers,
Chuck




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