CLEVATARI - March 1990

From: Atari SIG (xx004@cleveland.Freenet.Edu)
Date: 03/01/94-04:39:37 PM Z

From: xx004@cleveland.Freenet.Edu (Atari SIG)
Subject: CLEVATARI - March 1990
Date: Tue Mar  1 16:39:37 1994


     author Randy Hahn 
            (CLEVATARI NEWSLETTER, Issue #101, March 1990)

     This month has been a trying one for Atari Owners.   We
still haven't seen any STe's or TT's except in magazine articles. 
It's even hard to find 1040's  or 520's execpt on the used market
and an Atari monochrome monitor is one of the scarcest hardware
devices in the U.S.
     We band together like revolutionaries and try to change the
world into believing what we already know to be true -- namely
that Atari computers are best.  
     Unfortunately, we sometimes are frustrated and bewildered by
the failures of developers who don't deliver as fast or as
perfectly as some would want.  I hear so many shallow views of
one developer right now...Avante-Garde.  These views come from so
many "experts" who apparently know how it is to develop in a
world of unknowns.  Well, I would like to set a different tone
for a moment.  That is to congratulate Avante-Garde for being
persistent, innovative and patient with the very public which
they have so richly supported for so long.  Maybe we have
forgotten about Avant-Garde in their success of PC-Ditto, the
almost unbelievable hardware free  IBM emulator an honor they
granted to our favorite computer!!
      If we were to believe the opinions of the most frustrated
we would never have gotten to where we are today with respect to
computers.  Progress would be at a standstill, and computers
would be a thing of the future not the present.  No one would
ever dare to try anything  innovative as Avante-Garde has tried
in the past and the present.  OK, it isn't running yet, but that
doesn't mean that we should give up on them.  
     Nothing is perfect, including the very computer that we own
-- how quickly we forget.  Atari doesn't even appear to support
their computer as well as Avante-Garde has supported real clients
(not just bystanders).   You might remember Page Stream had a
similar problem when they first introduced the bug riddled
version of their product.  With all the owners they have today,
you may easily forget all of the negative feelings, ridiculous
accusations and bad remarks we heard about Soft Logic just 6
months ago!!  We forget all of that as we run out to purchase
what could be the best desktop publisher for the Atari ST.   So
why are all of these negative feelings amassed over Avant-Garde? 
They are standing behind their product and working long and hard
to correct the problems which have been  identified with their
product.  They aren't giving up like some of the Atari supporters
of the past!!!
       I am  proud of the fact that I purchased an advance copy
of PC-Ditto II.   I still have no doubt that Avant-Garde will
make good on PC-Ditto II because they can see beyond the
exaggerations and frustrations portrayed by some of the public
which is turning on them now.  I only hope they keep the faith
with those of us who look to the future and don't stoop to the
ridiculous opinions heard (some of which come from
non-purchasers).  I have called Avante-Garde three times and 
have had them answer all three times to be treated with respect,
and courtesy all three times.  They have encouraged me that they
are earnestly interested in any  problems  and are working very
hard to reconcile those  problems.  Avante-Garde has offered to
return my money twice and as far as interest lost in the bank so
far I have lost $3.50 (which I really can't get that upset over -
could you?).  I hope you can believe that over  any third and
fourth party opinions which are filtering to the public in
written articles based on sketchy information or hype.  
     If you truly believe in Atari computers please support and
encourage (not discourage ) anyone who supports the Atari with
developement.  For without your encouragement, there may not be
much of a furture for our enjoyment and livelihood.  

Support the REVOLUTION!


      by Joe Adato (CLEVATARI NEWSLETTER, Issue #101, March 1990)

  This is the current ST Disk Catalog available to the user group
members in the Cleveland area.  The disks are available at B & G
Electronics and may be borrowed without cost by members for two
days.  At the meetings disks will be available for $2.00 each. 
In addition programs are sold individually, so that you may put
as many programs as will fit on each disk and only pay a per disk
price of $4.00.  Questions should be addressed to the current ST
Librarian.  On disks for sale all files are ARCed unless
otherwise indicated in the catalog.  The size of the ARCed file
is listed in parenthesis.

  This disk contains seven (7) ARCed files.  A brief description
follows below.
   ACC5.ARC (99,584):  There are five desktop accessories in this
file:  Bigmouth (it will tell you jokes), Fortune (get your
fortune told), New Word (Complete with documentation, this is a
desktop  word processor), Notepad (write and  save notes), and
Diskman (one of my favorite disk utilities).
   ARKSHELL.ARC (17,434):  This is the shell program to use with
ARC.TTP.  It is one of the better shells for this program.
   CHECKERS.ARC (24,068):  This is the popular checkers  game.  
However, the graphics are nonexistent and the program is not  too
   CIRCLE2.ARC (20,991):  The program works with Fractals and is
a good demo.
    MICROCHK.ARC (81,280);  Microcheck was my favorite check
processing program on the 8-bit.  This is the ST version, which
has several additional options for sorting and maintaining more
than one account. 
   MONOPOLY.ARC (71,609):  This, the popular board game Monopoly,
is not quite finished.  Anyone with programming skills is welcome
to work on it.  Please note that the computer cheats!
   READER22.ARC (42,877):  This is a very useful program which
allow you to view text, on the screen, as if it were a printed
page.  you can move forward, back or proceed to a desired page. 
It is even possible to print particular phrases of portions of
the text.  This program is shareware and comes with complete

   There are fifteen (15) ARCed files on this disk.  
      AGGRIV.ARC  (50,842):  This is a version of the game
Aggravation.  It needs low resolution.
    CALC.ARC (12,259):  The file contains a program to create a
very  simple calculator (+.-.x.:).  There are many better
calculators and most are accessories.
    CHKDSK.ARC (19,205):  The program is supposed to check your
drive.  It is a TTP program with no documentation and I could not
figure out how to use it.
    DISKZA.ARC (4,546):  All I got  were two bombs.  Any
   GRAPH_3D.ARC (52,525):  This is a demo of a 3 dimensional
graphing program.MISCTOS.ARC (29,608):  The file  contains three
totally unrelated programs, but useful.  
   MILESTON.ARC (73,522):  This is the ARChed file to the popular
game of the same name.  First run GRABASRO.BAS, then choose the
appropriate program.  The game runs in Low Rez.
    MISCTOS.ARC (29,608):  The file  contains three totally
unrelated programs, but useful.  MAZMAKER.TOS will draw a maze to
a printer or  to the screen.  SEEKTEST.TOS is a  disk drive
diagnostic, set the  rates and run; the program prompts  you. 
XREF.TOS will print a cross-reference of a Basic program.
   MOUSEICN.ARC (8,771):  Two programs are in this file.  One
demonstrates the various forms the mouse pointer can take, the
other makes Mickey Mouse the pointer.
   RAMDISK.ARC (3,456):  The programs included will set up a ram
disk between 64 and 768K.   Documentation is included.  The  ram
disk is supposed to survive resets and changes in resolution.
   RD1040.ARC (4,865):  Another  ram disk, this one is an
Accessory with documentation.  It only works with 1 meg or larger
   SPELLPLS.ARC (25,795):  A spelling checker program that works
with 1st Word, this files contains documentation and instructions
for setting up your own dictionary.
   STSCOPE.ARC (15,407):  This is an ST Scope Memory Utility; it
will  display the contents of memory and allow you to change  it. 
Once run,  press 'HELP' for a list of commands.  You should know
what you are doing before you use this utility!
   UE.ARC (20,612):  This is the famous MicroEmacs Editor, a text
editor for programmers.  No documentation is included.
   VOLUME.ARC (1.920):  This program should change the volume
name on a disk.  It doesn't seem to work, however.
   WRDCOUNT.ARC (11,114):  A desk accessory that will count and
list the number of words in any text file.

(Note: Two or three disk listings will be included in each issue
       as room permits)

    author Randy Hahn 
           (CLEVATARI NEWSLETTER, Issue #101, March 1990)

As discussed in the previous issue, there are two basic types of
graphics forms which currently exist for use namely "line
drawing" or "bit-mapped".   We described the basic differences
and the ways in which the graphics were both represented.  Now,
on to a discussion of where and when to use them.  Unfortunately,
it really isn't a matter of which kind of graphics type to use
but rather when each type could "best" be used to represent the
picture or graphics in a particular application.  

As described last time, the bit-mapped type of graphics uses a
pixel by pixel representation of the art work.  It is therefore
capable of very nicely creating art work with subtle shading,
fine lines or irregular shapes.  Image scanners often are used to
save this type of image, because they can distinguish the subtle
shades of gray in a photograph or other art work when used at the
higher "dots-per-inch" settings.  Unfortunately there are a
couple of drawbacks when dealing with bit-mapped images.  First
of all, since bit-mapped images are representing a piece of art
work by defining each and every pixel, they routinely takes much
more memory to save on disk and also take up more memory in the
computer as they are being used.  This is why one of the options
of most desk-top publishing packages is the ability to show the
outline of a picture but to turn-off the actual picture from
being shown on the screen.  Turning off pictures can greatly 
speed up the whole operation of desk-top publishing when the
screen is re-sized and scrolling takes place. Otherwise,
bit-mapped images greatly slow down the process of desk top
publishing because of the memory use.   Secondly, a bit-mapped
image doesn't fare as well with a massive reshaping and/or
re-sizing of a piece of art work.  It will usually   represent a
picture quite  well when it is used at     exactly the same size
in which it was scanned, but, bit-mapped images which are
re-sized have to make many decisions about how to represent each
pixel when it is split or combined with other pixels around it. 
Since a computer cannot base its decision on "how it looks", but
on shear programming algorithms, the decision and the outcome of
a re-sized bit-mapped image usually leaves something to be
desired (especially in massive scale changes).  
As was stated last time, line-drawn (or vector-oriented) graphics
use mathematical descriptions to represent images.  They are most
often used in graphs (line, bar or pie shaped), flow charts and
schematic type drawings since they are made up of mathematical
shapes already.  The ease of duplication, movement (plus
subsequent repainting on a screen) and re-sizing are all
advantages of the line-drawn images.  This is the most typical
type of graphics used with Computer Aided Design (CAD) because of
the ease of setting up a symbol library for component type
drawings.  Re-sizing of this type of graphics faithfully retains
the proportions of the original, and thus is most useful when one
is trying to reduce or enlarge a drawing from its original size
particularly when trying to "cram" a full page image into 1/4
page of a desk top published newsletter (or vice verse).  The
biggest drawback of line drawn images are that subtle shades and
hues are virtually impossible to represent mathematically. 
Therefore, "true art" or photographs cannot be used efficiently
with line-drawn graphics packages.   
In summary, to insure the best possible results, each image must
be evaluated for the best compatibility with other graphics
packages and translated if necessary to allow the best possible
use.  One must also consider the original size versus the final
size of the art work as well as the shades and hues of the art
when first scanning or creating the image. Much of the time,
original art work can be scanned in one type of image and
translated into other types when transferred to a "paint" package
or other graphics art packages.  The art work  can be touched-up
and also saved in other common formats for better manipulation of
the art work in desk top publishing.  Of course, all of this can
take time, effort and patience when utilizing all of the packages
together.  If nothing else, it sure gives one a greater
appreciation for graphics as they are used today in desk top

by George

      author George Neff, Sr.

             (CLEVEATARI NEWSLETTER, Issue #101, March 1990)

     Each month a file from the "TCP" BBS will be highlighted.
These programs can be yours free just for calling and registering
to use the bulletin board.  The modem number is (216)-228-7335.

     The times listed are for 1200 baud so if you are using 300
baud the time will be about four times longer and if you are
using 2400 baud they will be one-half as long to download.

     These programs might not have been checked yet so if you
have any trouble with the file let me know and I will try it.  If
I can not get it to work I will get a hold of the one who up
loaded it and either find out what is wrong or get a working copy
loaded to replace it.

     To conserve space on the board most files have been arced in
one form or another, if you have problems extracting them see
some one at the meeting and they should be able to help you or
get someone who does know how.

     In the ST download-sig section [2] ST GAMES: again, is a
ShareWare program called WHEEL2_0.ARC.  This is a GFA Basic game
that is fashoned after the tv program as the name implies.  It is
well done and worth the asking.  There are editor programs to
make your own puzzles included in the arc file.  There are 839
blocks and will take 15 min. to download.

     Remember the REVOLUTION (tm)

                                 MULTISYNCH MONITORS 
                              DISPLAY FOR THE ATARI STs 
                                author Wm. H. Price 

           (Originally downloaded from GEnie)
           (Printed CLEVATARI NEWSLETTER Mar & Apr 1990 in 
                      a two part series)

           COLOR BETTERS THE ST'S SC1224 
               Most multisynch monitors, but not all, will work with the 
           ST's RGB output and vertical refresh rate.  Advantages are 
           operation in high resolution monochrome and both low and medium 
           color using a single monitor.  An additional advantage is the 
           better color rendition with more differentiation in tonalities. 
           Subtle shades are better represented than on the ST.  With Sony 
           color monitors, the colors are Kodachrome in quality -- rich 
           and saturated.  On the negative side, none of these color 
           monitors will match the sharpness of the Atari SM124 monochrome 
           monitor.  This monitor, as with other monochromes, uses single 
           pells or pixels to represent screen images.  Color monitors 
           must use three (Red, Green, and Blue) to form the same point on 
           a screen.  As a consequence, they cannot give the crispness and 
               If you use monochrome most of the time, as many do with 
           Spectre Macintosh emulation, the major question is whether or 
           not a softer and coarser monochrome display on a color monitor 
           is acceptable for continuous use.  It doesn't make sense or 
           cents to buy one of the lower priced multisynch monitors as an 
           economy measure just to obviate the need for two monitors where 
           high resolution monochrome is important.  And the purchase of a 
           higher quality and higher priced monitor in the $600 to $650 
           range -- such as the Sony 1304 HG or NEC 3D may not make much 
           economical sense either.  However there are those who continue 
           to have the desire for these types of monitors -- 
           unfortunately, I am one. 
               The following pages give pinouts and wiring diagrams for 
           construction of a Monitor Switch Box so that a multisynch can 
           be used in both color and monochrome with the ST's monitor 
           output.  The box is needed to ground the Monochrome Detect line 
           from the ST and force it to boot in high resolution monochrome. 
           It also switches from the ST's RGB color output to Monochrome 
           Intensity output to drive the monitor.  The pinouts for all 
           three Sony monitors (1302, 1303, and 1304) are the same.  NEC 
           monitors such as the Multisynch and Multisynch II use the same 
           pinouts.  Where Sony and earlier NECs use DB-9 inputs, the new 
           NEC 3D uses a DB-15 connector.  The NEC pinouts shown are still 
           valid for the 3D.  A converter cable -- DB-9 to DB-15 supplied 
           by NEC -- will give the proper interface.  This converter is 
           also availabe commercially as a one piece plug unit.  Other 
           monitors, such as the Mitsubishi Diamondscan, use different 
           plugs.  The Mitsubishi uses a DB-25 which is the same in pins 
           and shell as an RS-232.  The ST's output can be routed to these 
           monitors with the proper pinouts and plug. 
               The Monitor Switch Box can be wired for any monitor output 
           configuration.  If another monitor is used, a simple conversion 
           plug is comercially available to reconfigure outputs if both 
           monitors use DB-9 plugs.  If plugs are different for two 
           monitors, then wire a cable with the two different 
           terminations.  The least effort and highest cost approach is to 
           buy a cable with one of the plugs already made up.  If you are 
           good with a soldering iron, then buy the connectors and makeup 
           your own cables.  The ST 13-pin DIN plug is not that easy to 
           work with.  The solder or rear side has pins just like the 
           front, and soldering wires to these contacts is not a snap.  ST 
           monitor cables, with a DIN 13 male on one end and unterminated 
           on the other, are available from two or three sources.  Try 
           Best Electronics or Practical Solutions.  A 4-pole, double 
           throw switch (On-On) will be required for the Box.  Also fit 
           the Box with an RCA jack if you want sound routed to a stereo 
           or self amplified speaker like those available from Radio 
           Shack.  If you have Tweety Board, this will not be needed. 
               There have been several attempts to market these monitor 
           switch boxes, and all but the most recent have not met with 
           success.  The first reason is high price.  The first box 
           produced was overpriced in the $200 range.  The second reason 
           is differences in pinouts and plug configurations for the 
           variety of monitor inputs.  There is no standard.  The third 
           reason for lack of success is the small ST market for 
           alternative multisynch monitors. 
               Making your own box for $35 or less in parts will give you 
           an opportunity to try out several monitors at a dealer and 
           select the one that is most acceptable for high resolution 
           monochrome display.  But a problem is that most dealers don't 
           have the more expensive monitors broken out for display, and 
           you may not be able to give one a try.  Be persistant.  Ask the 
           dealer if he can recommend a customer that has a monitor you 
           are interested in.  But by all means, try before you buy to 
           insure that the display meets with your satisfaction.  Don't 
           take the word of others because each has different levels of 
               I have tried the homebrew Monitor Switch Box with the Sony 
           1303 and the NEC Multisync and Multisync II.  The 1303 is not 
           the quality of the 1302 which has a finer dot pitch.  However, 
           the color was excellent but the monochrome display was soft. 
           The Sony 1302 has a .26mm dot pitch.  This is a measure of the 
           center-to-center distance between dots and is also an indicator 
           of dot or pixel size.  Until recently, the 1302 had the finest 
           dot pitch of any color monitor on the market.  And dot pitch is 
           a better indicator of sharpeness than horizontal and vertical 
           lines of resolution.  The lines are also a function of screen 
           display size; so don't be mislead by more lines resolution.  It 
           simply might correspond to a larger monitor display size.  And 
           as the monitor size 
           increases, the dots are made larger and render a less sharp 
               But Sony is less than forthcoming in its specifications for 
           the 1302.  While touting the .26mm dot pitch, they don't 
           publish the fact that this applies to horizontal spacing only. 
           The vertical spacing is different, perhaps .32mm which is 
           nothing to shout about.  As a consequence, you may see black 
           horizontal lines that separate the color display lines.  They 
           are not dramatically obtrusive, but they are there.  On the 
           plus side, the Sony's have that superb Kodachrome color that is 
           richly saturated.  The blacks are black, and the background in 
           monochrome is absolutely paper white.  The 1302 is satisfactory 
           for ST monochrome use. 
               This model is being superseded by the new 1304 HG that has 
           a .25mm dot pitch.  The specifications on this new monitor 
           closely match those of the Apple Color Monitor for the Mac II. 
           This monitor is made by Sony to Apple's specifications, but it 
           is not multisynch.  I use one on a Mac II and it is excellent 
           in both monochrome and color.  Because of the closeness in 
           specifications -- the only two monitors available with a .25mm 
           dot pitch -- I strongly suspicion that they are the same.  Sony 
           has simply adapted the Apple version for multisynch use.  And 
           if I were to place my money on a monitor that would be highly 
           acceptable for monochrome display with the ST (sight unseen in 
           an actual test), it would be the Sony 1304 HG.  When viewed in 
           color on an IBM PC, the dots appeared extremely fine and it 
           appears that the .25 pitch holds true for both vertical and 
               The 1303 is not as good as the 1302 or 1304.  However it 
           did give a good monochrome display that was similar in size to 
           the ST's color display in medium resolution.  Although good, it 
           does not come close to matching quality of the SM124.  Since I 
           spend at least 60 percent or more of my time in 
           Spectre/Macintosh operation, I felt that this was not 
           acceptable for my requirements.  When switching from color to 
           monochrome, the screen picture sizes must be readjusted.  When 
           the color picture fills out the screen, the monochrome picture 
           will be half screen size until it is adjusted.  The Sony 
           controls are in the rear, making them very inconvenient for 
           this operation.  The NEC and NEC II have their controls on the 
           front.  When making adjustments, insure that horizontal 
           positioning is correct.  When first tested, the NEC seemed to 
           have ghosting with the character display.  However this was 
           because the screen had wrapped around and required proper 
           positioning.  The NEC display was also good.  But it was not 
           the equal of Sony in color -- more pastel and less saturated. 
               Both the Sony 1304 and NEC 3D now have automatic screen 
           sizing when displays are changed; so this should eliminate 
           annoying adjustments.  Additionally, both are improved over 
           earlier models.  Both would perhaps make acceptable choices for 
           monochrome use on the ST.  But I would still think that the 
           Sony 1304 would win by more than a hair if it is anything like 
           the Apple Macintosh monitor.  Perhaps a dealer will break one 
           out for testing when they become more plentiful and prices 
               Sony 1304s are discounted for around $645, and 1302s for 
           $575.  NEC 3Ds are lower priced at $585.  The Mitsubishi 
           Diamond scan can be found at $499 and sometimes lower.  If the 
           16" Nano FlexScan is a true multisynch, those who want 
           everything can get it for just under $900. 
               The following should get you started on a switch box so 
           that you can perform your own acceptance testing.  I have not 
           tried a Princeton Graphics or Mitsubishi Diamondscan since I 
           felt that their displays with the IBM PC were not the match of 
           the Sony or NEC.  It wasn't worth the money or effort for such 
           a change, and a promise was made a long time ago not to 
           compromise and throw money at something you wouldn't be 
           satisfied with.  Climbing out of that hole is too costly, and I 
           have paid this price in both camera and stereo equipment -- but 
           never again. 
           GEnie Mail: WM.H.PRICE 
           Bill Price 
           126 Casmar St. SE 
           Vienna, VA 22180 
           (703) 560-2684 
           Read Current Notes for the latest information in the ST world. 
                                  PINOUTS FOR: 
                            ATARI ST MONITOR DIN 13 
                                   SONY DB-9 
                                   NEC DB-9 
         FUNCTION                   ST     SONY          NEC 
         ---------------------      --     ------------  ------------ 
         Audio Out                   1     NU            NU 
         RF                          2     NU            NU 
         TTL                         3     NU            NU 
         Monochrome Detect (Switched)4 
             COLOR                         NU            NU 
             MONOCHROME                     1             6, 7, 8, 9 
         Audio In                    5     NU            NU 
         GREEN (Switched)            6 
             COLOR                          4             2 
             MONOCHROME                    NU            NU 
         RED (Switched)              7 
             COLOR                          3             1 
             MONOCHROME                    NU            NU 
         Ground NU                   8     NU            NU 
         Horizontal Synch            9      8             4 
         BLUE (Switched)            10 
             COLOR                          5             3 
             MONOCHROME                    NU            NU 
         Monochrome Intensity (Sw)  11 
             COLOR                         NU            NU 
             MONOCHROME (RGB Inputs)        3, 4, 5       1, 2, 3 
         Vertical Synch             12      9             5 
         Ground                     13      1             6, 7, 8, 9 
         NOTES: Sony 1302, 1303, and 1304 use the same pinouts. 
         The above can be used for the NEC 3D with a DB-9 to DB-15 
         conversion cable supplied as standard with the 3D. 
         ST 13-pin DIN cables with male DIN and unterminated at the other 
         end and DB-9 plug/unterminated are commercially available. 
         The NEC DB-9 to DB-15 converter can also be purchased seperately. 
         If problems are encountered with the NEC 3D, try disconnecting 
         some of the grounds on pins 6, 7, 8, and 9. 
                 Audio Out   NU     TTL   Mono Detect 
                      1       2      3      4 
                 Audio In   GREEN   RED   Ground 
                      5       6      7      8 
                 Horiz Syn   BLUE   Mono  Vert Syn 
                      9      10     11     12 
                 SONY DB-9 PLUG TO MONITOR - MALE FACE 
                 Ground    NU      RED    GREEN   BLUE     (COLOR) 
                  and              and     and     and 
                 MonoDet          MonInt  MonInt  MonInt   (MONOCHROME) 
                    1       2       3       4       5 
                       NU      NU     Horiz   Vert 
                        6       7       8       9 
                            DB-9 CONVERSION PLUG FOR SONY TO NEC 
                                    SONY                NEC 
                                    ----                --- 
                     Ground           1              6, 7, 8, 9 
                     Mono Detect 
                     NU               2                   NU 
                     RED              3                    1 
                     Mono Intensity 
                     GREEN            4                    2 
                     Mono Intensity 
                     BLUE             5                    3 
                     Mono Intensity 
                     NU               6                   NU 
                     NU               7                   NU 
                     Horiz Synch      8                    4 
                     Vert Synch       9                    5 
           This plug is available in most electronic supply stores. 
           One end is DB-9 Female for connecting to the box's 
           output cable, and the other end is DB-9 Male that plugs 
           into the Monitor or the DB-9 to DB-15 cable for the 
           NEC 3D.  The converter has a small printed circuit 
           board with jumper wires to make the proper input/output 
           configuration.  The pinouts shown above are for a switch 
           box wired for Sony output and their conversion to output 
           configuration for a NEC monitor. 
                            4-POLE DOUBLE THROW  ON-ON 
                      68 Ohm 
           |                            |        |        | 
           |                   100 Ohm  |        |        | 
           |    ________________VVVVV___|        |        | 
           |    |            |          |        |        | 
           |    |       .....|..........|........|........|..... 
           |    |       :    |          |        |        |    : 
           |    |       :  GROUND     MONO     MONO     MONO   : <-- SWITCH 
           |    |       :    |        INTEN    INTEN    INTEN  : 
           |    |       :    |         IN       IN       IN    : 
           |    |       :    |____________________________________________ 
           |    |       :               _______________________________  | 
           |    |       :               |        ___________________  |  | 
           |    |       :               |        |             :   |  |  | 
           |    |       :               |        |         ______  |  |  | 
           |    |       :               |        |         |   :|  |  |  | 
           |    |    ______MONO        RED     GREEN     BLUE  :|  |  |  | 
           |    |    |  :  DETECT      OUT      OUT       OUT  :|  |  |  | 
           |    |    |  :                                      :|  |  |  | 
           |    |    |  :                                      :|  |  |  | 
           |    |    |  :              RED     GREEN     BLUE  :|  |  |  | 
           |    |    |  :               IN       IN       IN   :|  |  |  | 
           |    |    |  :               |        |        |    :|  |  |  | 
           |    |    |  :...............|........|........|....:|  |  |  | 
           |    |    |                  |        |        |     |  |  |  | 
           |    |    |                  >        >        >     |  |  |  | 
           |    |    |          68 Ohm  >        >        >     |  |  |  | 
           |    |    |                  >        >        >     |  |  |  | 
           |    |    |                  |        |        |     |  |  |  | 
           |    |    |                  |        |        |     |  |  |  | 
           |    |    |                  |        |        |     |  |  |  | 
        ..................................................... ............... 
        :  |    |    |                  |        |        | : : |  |  |  |  : 
        : 11   13    4                  7        6       10 : : 5  4  3  1  : 
        :                                                   : :             : 
        :                ST OUTPUT PINS                     : : DB-9 INPUT  : 
        :                                                   : :             : 
        :                     HORIZONTAL SYNCH    9---------:-:--8  HORIZ   : 
        :                                                   : :             : 
        :                     VERTICAL SYNCH     12---------:-:--9  VERT    : 
        :...................................................: :.............: 
        Center poles of switch (labeled as RED, GREEN, and BLUE OUT) 
        are common output to the Sony monitor through the DB-9 
        connector. When switch is thrown to COLOR side (lower contacts), 
        the  ST's RGB output is fed to the common output center poles. 
        Monochrome Detect has no output in COLOR. With the switch thrown 
        to MONOCHROME (upper contacts), Monochrome Detect is grounded and 
        Monochrome Intensity is fed to the three RGB outputs.  Horizontal 
        and Vertical Synchs are fed straight through from the ST to DB-9 
        connector.  Thanks to Mike Odegard for the original circuit in 
        file #5617 uploaded in January 1988.  It works much better than 
        my circuit that didn't use resistance. 
                           DOT                        BAND    SCAN RATE 
                    DIAG  PITCH     PIXLES    LPI    WIDTH 
       MONITOR      SIZE    mm      HxV       HxV    MHz     HORIZ  VERT 
       -----------  ----  -----     -------   ------ -----   ------ ----- 
       Atari Color 
        Medium Res    12            640x200 
        Low Res                     320x200 
        Monochrome    12            640x400 
        CPD-1302      13   .26      900x560             30   50-100  15-34 
       NEC Plus       13.5 .33      960x720    94x94    55   56-80   22-45 
       NEC II         13   .31      800x560    81x79    30   50-80   15-35 
       NEC 2A                   Won't Synch with ST 
       NEC 3D         13   .28      640x480             45   50-90   16-38 
        Ultrasynch    11.5 .28      800x600             30   45-120  15-35 
        Diamondscan   13   .31      800x600             30   45-90   15-36 
       Apple Mac      13   .25      640x480             23 
        1304HG        13   .25     1024x768                  28-50   15-38 
       NOTE: Although the NEC 3D will display 1024x768 resolution, it 
       must be driven by an IBM 8514/A card for interlaced input. 
       Supposedly the Sony 1304 will display the above resolutions in 
       multisynch mode.  The Macintosh resolutions are for non-interlaced 
       display.  Call Sony on 1 800 222-0878 for more information 
       and specifications. 

     author Randy Hahn
            (CLEVATARI NEWSLETTER, Issue #101, March 1990)

About two years ago, I remember a demonstration of the Atari
Planetarium at the Natural History Museum by Bruce Frumker.   It
was demonstrated on an Atari 8-Bit machine.   Since that time,
Atari Planetarium was translated to ST format by Atari so
anything  you see in the demo can equally apply both to the 8-Bit
and the ST world alike.    

At the time, it seemed like a nice program, but I thought that
you would have to be a fanatic about stars to really use the
program.  Was I wrong!  This program is something which can
enlighten both young and old alike and is really an educational
tool in which to learn about the solar system. I had the pleasure
of demonstrating the program  to  an elementary school class (who
subsequently went to the Cleveland Planetarium at the Natural
History Museum) and they were intrigued by the what the program
could show them. The program could even do things which the real
Planetarium couldn't.  Yet I felt like I only touched the  "tip
of the    iceberg"  with the     demonstration. 

Atari Planetarium shows the computed positions of over 3500
stars, all 88 constellations all the planets in our solar system
as well as more than 300 deep sky objects such as other galaxies,
Haley's Comet and other star clusters.  It also has a special
information function built in which identifies verbally the
objects as you point at them.
The program allows you to travel in time approximately 10,000
years forward or back as well as witness any event both past and
future from almost any latitude or longitude on the earth's
surface.  The program is so easy to use that a novice can learn
it in one sitting and an expert can be enthralled by the
versatility and vastness of the programs abilities.  Having been
a navigator in the Navy, where I used the stars to navigate
across the ocean, I had a special appreciation for what the
program is actually doing in all of its data manipulation and
calculations behind the scenes.  I only wish I had such a tool
when I was aboard ship in the navy.  There is a tremendous find
function which can instantaneously find any of the constellations
or planets.  All of the functions are mouse accessible from a
group of pull-down menus.  Many of the functions can also be
accessed by some keyboard key combination.  Any sky image can be
printed or saved at will.  You can also speed up or slow down the
clock which animates the various celestial events as they occur. 

The documentation is a book of over 150 pages which contains
examples, historical events and an overall primer on the stars. 
It alone is worth the money I paid.  I was especially enlightened
by the discussions on Chronology, History and Archeology as they
pertained to the stars and navigation.  The "Guided Tour of the
Universe"is extremely interesting  and helpful in the learning
process.  The book also contained discussions on the Star of
Bethlehem, Haley's Comet, the stars and how they were used by the
Romans, Greeks and Egyptians  and even a discussion of the
possibility of extraterrestrial life.  The discussions in the
book are so well written that they stimulate the thought process
as well as provide an interesting gateway to the stars.  At the
end of the book are tables, technical notes, future celestial
events (including times and places), mathematical conversions, a
glossary of terms and an index to help you find your way. This
along with the bibliography of 59 entries has to give you some
idea of the research that went into this baby.

One of the real beauty's of the program is being able to explore
the sky even on cloudy and overcast or stormy nights from the
confines of my computer terminal.  The program is designed for
anyone who looks at the sky and wonders what a particular object
might be.  You definitely don't have to be an astronomer to enjoy

The REVOLUTION (tm) - The Calendar Continued

    by Atisian Software

     (Reprinted in CLEVATARI NEWSLETTER, Issue #101, March 1990)

March 4 through March 10, 1990

Continuing an effort to get Atari Computers in schools, write a
letter to the largest school in your area and tell them that you
would prefer that they use Atari computers for education.  List
25 reasons why in your letter.  Ask your family to send similar
letters under separate cover.  Invite the school to contact your
local dealer for information.  Include your dealer's phone

Week 11
March 11 through March 17, 1990

In advance, locate a store in your area that sells helium filled
balloons.  Look for a green, non-metallic one.  User's groups may
wish to obtain a tank or two of helium from a local supplier. 
Listings are easily found in most phone books.  Write a note
stating: "SAVIN' O' THE GREEN...use Atari Computers" and sign it:

Tie the note to a string attached to the balloon you purchase in
a timely fashion to be launched on Saturday March 17 at Noon in
your time zone.

You may singly launch the balloon from your back yard or organize
a full blown event with your users' group.    PLEASE  NO  NOT
SAFE PARTICIPATION IN THIS PROJECT. Larger groups should contact
the local newspapers in advance for coverage.

March 18 through March 24, 1990

"The pen is mightier than the sword" and we're going to prove it again.  Let's target David Horowitz this time.  Write a letter to: 
              David Horowitz
              c/o NBC TV
              3000 Alameda
              Burbank, California 91523

Tell him that your are member of "The REVOLUTION" and wish to have a show which demonstrates the value of Atari computers.

March 25 through March 31, 1990

Write letters to the three following Booksellers:
              B. DALTON BOOKSELLER
              7505 Metro Boulevard
              Minneapolis, MN 55435
              WALDENBOOKS, INC.
              201 High Ridge
              Stamford, CT 06904

              CROWN BOOKS
              3300 75th Avenue
              Landover, MD 20785

Tell them you are frustrated with the lack of Atari book support in their stores and you would like them to look at that issue earnestly.  Tell them you are a member of "The REVOLUTION" and would like to see a special, hily
which demonstrates the value of Atari computers.

March 25 through March 31, 1990

Write letters to the three following Booksellers:
              B. DALTON BOOKSELLER
              7505 Metro Boulevard
              Minneapolis, MN 55435
              WALDENBOOKS, INC.
              201 High Ridge
              Stamford, CT 06904

              CROWN BOOKS
              3300 75th Avenue
              Landover, MD 20785

Tell them you are frustrated with the lack of Atari book support in their stores and you would like them to look at that issue earnestly.  Tell them you are a member of "The REVOLUTION" and would like to see a special, highly visible asselage of Atari
books in front of their stores.

April 1 through April 7, 1990

 Call, call the following networks:

      ABC  NY (212) 887-7777
      ABC  CA (213) 557-7777
      CBS  NY (212) 975-4321
      NBC  CA (818) 840-4444

Ask to speak to the producer or a representative of the shows mentioned in previous weeks assignments.  Ask them, if you do not know, if they have plans to follow up in response to the letter writing campaign.  If they have done so already, congratulate
them and tell them you hope to see more of them in the future.



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