-----Original Message-----
From: Jeffrey l Kaneko <jeff.kaneko(a)juno.com>
To: Discussion re-collecting of classic computers
<classiccmp(a)u.washington.edu>
Date: Wednesday, December 08, 1999 9:11 AM
Subject: Re: Free NCR tower in Miami FL.
MFM disk controller was made by NCR, but it looks like
a 'cookbook'
design using the WD-100x chipset.
SMILE when you say that, pahdnuh! That cookbook design is what made the
microwinchester drive so simple to include that anyone with two grey cells
and a little PLL knowledge could put together a winchester interface.
That's why they became so cheap. It was the only way to do your own
controller at a competitive price for several years, until SMC brought out
their 9224 chip. Unfortunately, by that time the patent on RLL recording
had expired, so everybody wanted RLL.
Dick