GS
ZXNet echo conference «hardware.zx»
From Alexander Araktcheew → To All 29 October 2000
Greetings, All!
Has anyone tried to assemble Subj themselves?
I mean, not on a finished board, but on a mole rat.
And now I’m thinking of collecting something from nowhere)
In order not to bother with the layout of the address/data buses, I decided to take a piece of the board
Pentagon48, almost everything fits perfectly there. I decided to take the DAC block from SounDrive,
Because it’s still almost idle. I have SD assembled using 1k and 2k resistors, so
if you adjust the volume according to the following diagram:
┌──┬──┬──┐16
┌───┤D0│ │Ro├─────────────┐
├───┤D1│ │ │1 ┌─┬─┬─┐ │
├───┤D2│ │I+├────O │ │ ├──┴──>
├───┤D3│ │ │2 │ │ │ │
─┴─ │ │ │I-├──■─┤ │ │ │
D0t──┤D4│ │ │ │ └─┴─┴─┘
D1t──┤D5│ ├──┤3 │ K1401UD2
D2t──┤D6│ │GN├──┤
D3t──┤D7│ │ │ ─┴─
D4t──┤D8│ │Up├14───o +5V
D5t──┤D9│ │Uo├15──┐
└──┴──┴──┘ │
+ │
WITH DAC ───┤├────────┘
10mk
Will the volume be adjusted normally?
All the best, All!
Alexander aka Arc of RLDG.
From Alexander Araktcheew → To Dmitry Lomov 15 November 2000
Greetings, Dmitry!
Fri 3 Nov 2000 at 17:39:55 Dmitry Lomov and Alexander Araktcheew were talking
on the topic GS.
DL>>> also, if your R-2R is not buffered, you will get
DL>>> some
DL>>> nonlinearity of regulation.
AA>> Place an amplifier after the DAC?
DL> is desirable.
That's it.. The project has dried up at around 80%..
I sold my computer :'''(
For only 900r :(
Pentagon1024TurboHD+PCkey+KempstonMouse+SlotSystem+CMOS+Cashe64
kROMEmulate+AY+SounDrive+4WAmp+230WMiniTower+MPPS
We'll drink a lot of vodka...
And all because on December 1st I’m going to trample the year’s boots, presumably
near Saratov. :(
AA>> I decided to conduct experiments, so I didn’t notice any
AA>> not
AA>> linearity (a herd of bears and one elephant are probably to blame
AA>> ;')
DL> means it is small ;)
So you don’t know yourself? ;)
AA>> PS: Can’t you order bare boards there?
DL> no.
Abydna..
I'll give my imperfection to someone, maybe they can figure it out..
All the best, Dmitry!
Alexander aka Arc of RLDG.
From Alexander Smirnov → To All 21 January 2002
How are you, All?
Maybe someone can tell me. My GS is giving me strange glitches. In this case, the program or
hangs or continues to work without sound. I noticed that more often this
occurs when both effects and music are involved. Maybe someone with this phenomenon
Already encountered?
Best regards, Alexander Smirnov.
From Nikolaj Amosov → To All 23 August 2004
Greetings, All!
Gentlemen, I am interested in the name of the amplifier microcircuit, which
was in the first version of GS, which was connected via an adapter
and required a separate 12V.
[REAL ZX]