BI-COLOR LED on Disk II Drive: Info needed

[buggie@musca.unm.edu (stephen e buggie)]

I will be speaking at KansasFest in July about hardware modifications to 
the Disk II drive.  I will show off drives that have (a) 3-position manual 
override write-protect switch, and (b) front-panel speed adjustment knob.

But I have learned that the red "in use" LED can be replaced with a 
green-red bi-color LED to show when the disk is being read vs. written.   
The source is in a book about the IIe, but I regret that I do not have 
the name or author of that book.

HELP!

(a) Could someone tell me the author and title of the IIE book that 
descibes this modification?

(b) Could someone MAIL ME A PHOTOCOPY of the article so that I can add 
this change to the "super Disk II" to be shown at KansasFest?  All help 
will be acknowledged in the docs-on-disk to be handed to attenders at 
KansasFest.   (Also, if the bi-color read-write LED is successful, it 
will become yet another hacking service I will offer to readers of the Apple 
net!)  


Thanks.



Steve Buggie
200 College Rd				buggie@unm.edu
Gallup NM  87301


[P.S.  I am aware of the December 1983 issue of InCider that describes a 
bi-color LED as a write-protect indicator.  But I wish to use it as a 
read-write indicator since I have manual override control over write 
protect functions.]