I just got the two Sol enhancement boards I recently won on ebay.
They appear to be designed to integrate into the Sol mainly via
the removal of a number of chips on the main board and plugging
the upgrade boards into the sockets. To accomplish this, the boards
have a large number of post/pin parts soldered onto the boards with
the pin ends pointing down. On one board, two of the pins are broken
off. The parts are gold plated, about 2cm in length total. The post
part is about 1.2cm long and a little less than 1mm in diameter.
Then, there is a short section that looks like what you would expect
a pin from a quality machined pin dip socket to look like if you took
it out of the plastic. It is about 4mm long varying diameter between
1.5mm and 2mm. Then comes the pin itself about 4mm long, less than
.5mm in diameter. I can't seem to find a source for these.
Any ideas appreciated,
Bill
>From: "Jules Richardson" <julesrichardsonuk at yahoo.co.uk>
---snip---
>
>> > The bit I don't know is the nature of the data signal at the interface -
>> > it uses +/- signal lines for both read and write data. I'm not sure if
>> > that's an analogue signal or a digital one.
>>
>> Digital.
>
>Well that bit's easy then :)
>
>
---snip---
Hi
Digital but self clocked. On the write side it is
a pulse to the write amplifier. On the read, it
is a pulse indication a transition at the head.
The pulse width is not important on the read but does
have a min/max. Write pulses need to be the correct
width to tighter tolerance. Time between pulses is the
most important element.
But, yes, digital differential signals.
Dwight
I can help with the scanning of the IPC manuals. I am running the
HP Series-80 site and I have all the necessary elements for fast
scanning. I have borrowed manuals from other people and I have returned
them on time without any damage.
Let me know if I can help.
**vp
Curiousity for the day - is there any difference between the use of disk
and disc when describing floppy drives, hard drives etc.?
The majority of people seem to use disc, but the use of one or the other
doesn't seem to be a regional thing.
I just wondered if one is technically right and the other wrong when it
comes to computing...
cheers
Jules
> VCF. See the marks the fire/explosion left on the trailer!
> See the bullet
> holes from the police shooting at it.... *GRIN*
>
Oooh. I love to hear that story!!!
Ram
but you can only buy one per person, so there is no opportunity for a group buy without the people to go along with it. The $50 price is great which means that is will be an absolute zoo and will be an all day and maybe the night before event for those lucky people that have time like that and a large family to take along.
-----Original Message-----
From: Cameron Kaiser <spectre at floodgap.com>
Sent: Jul 26, 2005 8:14 AM
To: cctalk at classiccmp.org
Subject: Re: Anyone in Virginia?
> The schools there are selling 1000 Apple ibooks...
>
> http://www.henrico.k12.va.us/
I saw that too. I wonder if anyone here local to the sale might be interested
in working on a group buy for a "finder's and inconvenience fee."
--
---------------------------------- personal: http://www.armory.com/~spectre/ --
Cameron Kaiser, Floodgap Systems Ltd * So. Calif., USA * ckaiser at floodgap.com
-- The cost of living has not adversely affected its popularity. --------------
One of the guys trying my ImageDisk program is using an
Adaptec 1542CF controller - he can read disks fine, however
when he tries to write them, it gets an error during every
write sector command.
The status registers reported ar:
SR0: 41
SR1: 04
SR2: 00
According to the NEC 765 datasheets:
41 means "Abnormal Termination of Command"
"Execution of command was started, but not successfully finished"
No other error indicators
04 means: "B3: Not used, this bit always low (0)", No other error indicators
00 means: No error indicators
Looks like the controller in the Adaptec is using B3 as an error indicator,
however I do not have any information on what this means ... Does anyone have
technical information on the Adaptec controller and can tell me what this
bit means?
Regards,
Dave
--
dave04a (at) Dave Dunfield
dunfield (dot) Firmware development services & tools: www.dunfield.com
com Collector of vintage computing equipment:
http://www.parse.com/~ddunfield/museum/index.html
Hi all,
This is a fun magazine about making stuff, IMO intended for the kind of
people that hang around here. I don't make any money out if it, I just
simply like it.
http://www.makezine.com/
Bert
