Spectrofon #10 02 февраля 1995

Железо

System - "turbirovanie VG93.

           SYSTEM



   We wrote A. Wise from Tambov:


   Hi Editor's spectrophone. Wrote you a longtime fan
Speccy. I and many of my friends
in love with this wonderful machine. Many do programming, 
writing and demo system program. Really like your

e-zine. I hope that
It will link all fans
Speccy. And forced to write this
letter that in the "System" section is very little hardware 
development. So I decided to make a small contribution to the 
development of this section.



   Have access to our IBM-oh
BBS. Once again, I went through
e-mail and in the section "ZX-SPECTRUM"
found a very interesting letter. In
This letter is a diagram of
finalize BETA DISK interface.
This revision has been tested by me and has led to excellent 
results. I hope that this completion will help many users 
speccy. 

"S": We have read the emails that are sent to us
Our correspondent decided to publish it as it is.
The originality of style has been saved.



FROM: Vladimir Larkov
TO: Igor Mynkin


       Turbirovanie VG93



   ... After a fairly long
work, especially with glyukavymi "
diskettes, the skull begins to crawl at a rate of a dead 
cockroach. 


   ... Quite simply, in a fairy tale
- Cheating. That's me to the fact that if
who do not drive your nerves
acts or rattles as nuclear
war, then one (!) melkosheme you can make a miracle. We
it is a miracle dubbed "turbirovanie SH-shki.


   Take the CP 11 or 16, look
to the scheme:


    CHANGES "PENTAGON 128"

 555IE10 555KP11 KR188VG93


      January 15, 1930
 CT2 WG

      14 2 4


      13 3 8
 D93

      December 1915


      11
 18


                       24 D90

                   X CLC

                  /

               gap



   Now the explanation:

1. Thirtieth legs SH-ki, no cutting off, pull the wire to
the first leg of our CP. In my
Dock, this signal is called the "gate
record. "It will be the manager.

2. Cut only one way - the one
that came from the twenty-fourth
SH feet. This CLK - clock signal. At the twenty-fourth leg
SH clings fourth leg of our
CP (its output).

3. Now, trace, where there was
road, which we have just
cut. We find, therefore, the thirteenth step chips
555IE10. This clock frequency -
1 mHz. Him we serve and the third
leg of our MP (one of its inputs).

4. Now on 555IE10 find fourteenth leg, which
should be 2 MHz and submit it
the case for the second leg of our KP
(The second of its input).

"S": For owners of other cars
advised to find the right foot or
scheme of the controller, or by measuring devices.
Usually they are located next door (1 MHz and 2 MHz).

5. Fifteenth leg of our KP throw to the ground, and of course
eighth and sixteenth - food.


   For those who have the "Scorpion" -
this scheme D56 (IE10), 1 MHz to
eleventh leg, 2MHz at the twelfth.



   Incidentally, it is convenient to refine this
burn on the second floor directly to the
555IE10. Wire obtained a minimum length.


   Now the theory:


   VG93 clocked frequency
1 MHz, although a passport and holds a
2MHz without straining. With the active
write strobe output KP 1MHz
and all the old. When inactive
write strobe output KP 2MHz
VG93 and is clocked at twice
faster. Accordingly, two
times faster (and much quieter) fly "Bosko" drive.
If your floppodrayver not from the museum, you will have no 
problems. 



   I have the "Scorpion" that thing hanging has two or three 
months (Drives "Rushen - 5313) and no

a write error or positioning was not. During this time,
I've formatted / write / erase / read. Everything is alive. But
if someone wants to be able to turn off a miracle, just
case - the can on the first leg
Our KP hang tumbler and click: strobe recording / 5, with 5
everything will be as before.


   Sometimes the "shadow businesses" in "Scorpio" is not just 
reading or katolog loads the file. Helps to re-

press ENTER. However, the promised
that the distinguished Andrew MOA "shadow businesses" with this 
business to make friends, and Zonov new board will be directly 
with this 'feature' to breed.




   Special amenity deliver this revision in the "yuzanii 
isdosa" and similar things, where the "head" a lot of flies on 
the disk. A truncated tepericha will without noise and dust. 
"About ten friends have done it - complaints

no. Truncated.


   Whereupon let bowed.


   With best wishes, Vladimir.

PS: do not send flowers, coined
not me.



             *