[comp.sys.atari.st] 2 & 4 Meg Expansion PCB

emmo@moncam.co.uk (Dave Emmerson) (08/01/89)

Sorry I'm a little late in posting this, my employer is one of those
traditionalists who expect people to WORK for their salary.
We've built and tested our board, and are happy to report no problems
in either 2.5 Meg or 4.0 Meg configurations.
The result looks reasonably tidy, and by replacing 2 electrolytic
capacitors on the motherboard with ones with longer leads we can *just*
get the metal screen back on. One was the reset timing capacitor
mentioned in 'hard disk autoboot' articles recently, so you might like
to do this anyway. Be sure to leave the leads long enough to lay the 
capacitor down flat against the motherboard.

One last point (before anyone sends any money), I'm not familiar with
the layout of the various releases of the ST, so if you can sketch
out a template to check the board won't foul the keyboard support
pillars etc.. in your machine, you'll maybe save yourself some hassle
later. Cut out a rectangle 85mm high, 108mm wide. Inside it, draw a 
rectangle, 15mm high x 48mm wide, its bottom right corner is 7mm up,
41mm in from bottom right of the template.
Align the template over the shifter chip in your ST, with the rectangle
towards the front of the machine, and check for possible obstructions.
If it won't go in, there's little more we can do but apologise, and 
suggest you use flying leads from a more convenient location, or else
buy a proprietary board.

Now the nitty gritty. The board costs 15.25 pounds each, PLUS carriage
if you can't collect in person. Allow 40 grammes (1.3 ounces), +
airmail rate if required. A further 5 pounds if you want a spare 256K
DRAM, and 4.05 pounds if you want the 16 way cable assembly. Please
pay in pounds sterling if possible, or allow a further 2 pounds for
bank charges. We'll post same day we clear payment, so use POs in the
UK if you're in a hurry. If you include your net address, we'll confirm
receipt & despatch. Make payable to H. Fearnham, & send to :
H. Fearnham
Monotype A.D.G.
Unit 16, Science Park,
Milton Road,
Cambridge	CB4 4FQ
England.

If it weren't for the prattle in some other newsgroups I'd feel guilty
about the amount of bandwidth I've consumed recently. Hopefully this is
my last posting on this subject.
All the best to y'all

Dave E.