Creating new CP/M disks - Progress on IMSAI
Richard A. Cini
rcini at optonline.net
Sat Jan 12 08:23:02 CST 2008
Yes, but the heads engaged and disengaged to reduce wear. On modern drives,
the heads remain engaged but the motor stops.
I've found that the YE-380 drive from the original PC/At works properly for
this application, so if anyone has a working spare, I'd like to trade a Teac
FD55GFR for it.
On 1/12/08 9:13 AM, "M H Stein" <dm561 at torfree.net> wrote:
> Date: Sat, 12 Jan 2008 09:22:38 -0300
> From: "Alexandre Souza" <alexandre-listas at e-secure.com.br>
> Subject: Re: Creating new CP/M disks - Progress on IMSAI
>>> I¹m looking for some advice/whatever on engaging the motor when needed.
>> How is DS0 line activated? As far as I know the sequence should be:
>> - Activate DS0, motor starts to run
>> - Activate "head load" so the heads can do their job
>> - Read/write
>> Since your motor is always on, seems that you have DS0 activated
>> permanently. Isn't something wired wrong?
> As a matter of fact, the motor did run constantly on many 8" drives (remember
> that many had 110V AC motors).
Collector of Classic Computers
Build Master and lead engineer, Altair32 Emulator
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