[Info-vax] search for SDI and SMD disks (in europe)

Johnny Billquist bqt at softjar.se
Tue May 31 02:49:28 EDT 2011


On 2011-05-30 20.40, Richard B. Gilbert wrote:
> On 5/30/2011 4:06 AM, Johnny Billquist wrote:
>> On 2011-05-30 00.32, Hans Vlems wrote:
>>> On 28 mei, 14:01, shadoooo<shado... at gmail.com> wrote:
>>>> Hello.
>>>> To restore a couple of old machines I'm searching for fixed and/or
>>>> removable disks.
>>>> For one machine I would need an SMD disk or cartridge drive.
>>>> For the other machine, I need an SDI disk unit.
>>>> If anybody has some to sell a reasonable price, please let me know.
>>>> Thanks
>>>> Andrea
>>>
>>> Andrea,
>>> an SDI disk unit means an RA drive, right?
>>> Not that I have one, just curious if an RA90 or RA72 may still be
>>> found !
>>> Hans
>>
>> I guess this is not the right time to talk about the 50+ RA90 drives we
>> tossed about five years ago...
>>
>> Johnny
>>
>
> RA series drives belong in a museum! They were pretty good disks for
> their day but that day is LONG GONE! They were power hogs, 35 ampere
> starting surge and something like seven amperes steady state for the RA-81.

You make a big mistake when you group all RA-disks together like that.
RA8x disks are nothing like RA9x disks, which again nothing like the 
RA7x disks. RA7x disks are just plain 5 1/4" full height disks. Draws 
very little power, takes no more space than contemporary SCSI disks (of 
the early 90s), and are no problems at all on modern machines.

	Johnny



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