Purple plague? Was:Re: [Coco] Any problem with connecting 2 floppies to one power supply?

[jimcox at miba51.com]

On Sun, 1 Feb 2004 20:00:33 -0500
  Gene Heskett <gene.heskett at verizon.net> wrote:

>That said, I did it for several years in my grass valley 

>e-disk 

>simulation running on os9, but its duty cycle was quite 

>low.  Never 

>had a problem with it, ever, other than dying wd-1773's 

>in the disk 

>controllers, it used up 3 of them in 13 years.  I think 

>the purple 

>plague ate them, a well known PMOS chip failure 

>mechanism.

>

>-- 

>Cheers, Gene


Gene:

Can you elaborate on the purple plague, and does anyone 
know if the wd-1773's are still available?

Jim