[Info-vax] search for SDI and SMD disks (in europe)
Richard B. Gilbert
rgilbert88 at comcast.net
Tue May 31 07:42:20 EDT 2011
On 5/31/2011 2:49 AM, Johnny Billquist wrote:
> 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
Sorry! Reflex!!! My experience with RA series disks is almost entirely
with RA-81 and RA-82.
The least they could have done would have be to call the later models
RBxx, RCxx, etc.
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