From: MLONG@isucard.card.iastate.edu
Newsgroups: comp.sys.zenith
Subject: Re: 3.5" floppy on Zenith 151?
Date: 12 Aug 92 21:59:01 GMT
Organization: CARD

In article <DWSMITH.92Aug11124318@fred.lll-winken.llnl.gov>                                                                                           
dwsmith@fred.lll-winken.llnl.gov (David Smith) writes:                                                                                                
                                                                                                                                                      
>                                                                                                                                                     
>Hello, I have a old Zenith 151 and I was wondering if it is possible to add a                                                                        
>3.5" floppy this old of a machine?  Replies my be mailed directly to me or                                                                           
>posted.  If it is possible, what do I need to get?                                                                                                   
>                                                                                                                                                     
>Thank you,                                                                                                                                           
>                                                                                                                                                     
>                                                                                                                                                     
>David W. Smith                                                                                                                                       
>dwsmith@llnl.gov                                                                                                                                     
>--                                                                                                                                                   
>David W. Smith                                                                                                                                       
>                                                                                                                                                     
We have done this with 720 KB drives, just needed to change the floppy cable                                                                          
slightly, as its length betwwen the connectors wasn't enough, set the system                                                                          
switches to tell it has 2 floppies, and run DSKSETUP if pre-DOS 5.0.  If DOS                                                                          
5.0 take a look at the DRIVPARM command line for CONFIG.SYS in the manual.                                                                            
I think we used Toshiba? 720KB drives.                                                                                                                
I do not think that 1.44MB or 2.88MB mechanisms will work with your present                                                                           
floppy disk controller.                                                                                                                               
Check the drive select switches and terminating resistors on the floppies                                                                             
also.                                                                                                                                                 
Mike Long                                                                                                                                             
Iowa State University