[Coladam] disk drives

Geoff Oltmans oltmansg at bellsouth.net
Mon Jul 4 14:59:41 CEST 2011


We have a programmer at my work that can read a variety of different devices... so if no one else has one I can give it a shot.

Rich:
Is this the same controller board you sent me once upon a time to try?

On Jul 3, 2011, at 10:37 PM, Jim Notini wrote:

> Seems like the large majority of Mark's/Micro Innovations drives didn't have 
> a very long lifespan unfortunately... probably why I haven't seen a single 
> one go up on an eBay auction since I've been following things. It's either 
> that or the simple fact that those ADAMites who were still around and bought 
> these drives from Mark are the true hardcore fans and will probably never 
> sell their drive.
> 
> Concerning your drive, Rich. It couldn't hurt to try and dump the firmware 
> program for preservations sake. I would assume that Mark used GALs for these 
> which would make dumping the contents a more involced process from what I've 
> heard.
> 
> 
> ----- Original Message ----- 
> From: "Frances and/or Richard Clee" <cleechez at tamcotec.com>
> To: <coladam at adamcon.org>
> Sent: Sunday, July 03, 2011 10:08 PM
> Subject: Re: [Coladam] disk drives
> 
> 
>> At one point one of the drives I bought from Mark Gordon would not work,
>> and I ended up with the controller board (fully populated, obviously) of
>> a Micro Innovations 5-1/4" 320k disc drive. I suspect the chip on the
>> board could be read and yield useful information, and could bring it to
>> Adamcon if anyone has a reader. Is this information useful?
>> 
>> - rich
>> 
>> 
>> 
>> 
>> On 7/3/2011 2:30 PM, Geoff Oltmans wrote:
>>> I have a copy of the 320/720kb drive code as well. Before CompuServe 
>>> ceased operations I downloaded all of the Adam archive and one of the 
>>> files includes the drive firmware and instructions for modding the pcb.
>>> 
>>> You can modify the drive to do either dsdd 5.25" or 3.5" mechs. The trick 
>>> is the disk in switch for the 5.25" mechs. You can use a double sided 
>>> drive without modification to the pcb or changing firmware, I just glued 
>>> a microswitch in place on mine to handle it.
>>> 
>>> Sent from my iPhone
>>> 
>>> On Jul 3, 2011, at 1:00 PM, "Jim Notini"<jnoti2 at comcast.net>  wrote:
>>> 
>>>> What about just replacing the drive mechanics if something goes bad 
>>>> (like the drive motor, broken belt, read/write head, etc.) with an old 5 
>>>> 1/4" DS/DD 360K Disk Drive and use it as a SS/DD 160K Drive. It would 
>>>> probably take a lot of research and buying different drives to see if 
>>>> you finally find one that has all the same sensor hook-ups since adding 
>>>> a sensor would be out of the question for almost all but a select few 
>>>> people. I could swear the drive I picked up for an old PC to do 
>>>> transfers between the ADAM and PC has all the same sensor hook-ups, but 
>>>> I will have to pull it in order to verify.
>>>> 
>>>> That socketed chip on the controller board behind the power switch is 
>>>> the drive BIOS and the only one that would have the program data that 
>>>> gets burnt to these chips for a drive conversion to 5 1/4" 320K, 360K or 
>>>> 3 1/2" 720K is Terry Fowler (unless someone pulled the chip from their 
>>>> drive and had it dumped). This software was written by Jim Marshall / 
>>>> MMSG for drive conversions that Ed Jenkins offered and Terry Fowler used 
>>>> the same conversion kit.
>>>> 
>>>> John Lingrel / Orphanware was the first to perform drive conversions and 
>>>> had his own software written probably by Tom Clary or Glen Gabarik... 
>>>> but there were some issues as I recall that developed over time but I 
>>>> can't elaborate as I don't know for sure.
>>>> 
>>>> Think we have ourselves a mission on our hands... especially if the SD 
>>>> Drive isn't mass-produced.
>>>> 
>>>> Jim
>>>> 
>>>> 
>>>> ----- Original Message ----- From: "geoffrey 
>>>> oltmans"<oltmansg at bellsouth.net>
>>>> To: "Joe Blenkle"<jblenkle at sacnews.net>;<coladam at adamcon.org>
>>>> Sent: Thursday, June 30, 2011 8:53 AM
>>>> Subject: Re: [Coladam] disk drives
>>>> 
>>>> 
>>>>> As Bob said, it is definitely possible, and everything he said is true. 
>>>>> I will
>>>>> add that you also need to do a wire mod to add the side select signal 
>>>>> to the
>>>>> disk drive connector otherwise it won't work correctly with double 
>>>>> sided disks.
>>>>> 
>>>>> 
>>>>> 
>>>>> ________________________________
>>>>> From: Joe Blenkle<jblenkle at sacnews.net>
>>>>> To: coladam at adamcon.org
>>>>> Sent: Wed, June 29, 2011 7:56:10 PM
>>>>> Subject: [Coladam] disk drives
>>>>> 
>>>>> Just curious...and I know this has probably been discussed before...is 
>>>>> it
>>>>> possible to replace the drive mechanism in an ADAM disk drive with a
>>>>> standard 360k drive...or is there something more complicated that needs 
>>>>> to
>>>>> be done rather than just swapping hardware? It the ADAM's disk 
>>>>> controller
>>>>> separate from the drive or is it actually soldered into the drive 
>>>>> mechanism?
>>>>> 
>>>>> Was just wondering because I've got several working 360k PC drives and
>>>>> barring the day where my ADAM drive might have a mechanical failure I 
>>>>> was
>>>>> wondering if they could be swapped.
>>>>> 
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>>>> 
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