	  - C O V O X  Enhancement  for  Atari XL/XE: -

- presented by Gumi/Tight (Poland of course!)
- Easy 4 channels * 8 bits Covox C/A for Atari XL/XE 
- no copyright, no warranty, no complaints...

List of electronic parts needed (sorry, polish!)

uklady:
1 * 74LS138
4 * 74LS574

rezystory:
36 * 1.2 kOhm
28 * 2.4 kOhm

kondensatory:
4 * 100-220 nF


Do ukladu 74LS138 musz by podczone nastpujce sygnay:
pin 1 - A0
pin 2 - A1
pin 3 - R/W
pin 4,5 - $D6 (strona $d6 dekoder)
pin 6 - o2 (fi2)
pin 8 - 0V - GND
pin 12 - zegar #4 C/A
pin 13 - zegar #3 C/A
pin 14 - zegar #2 C/A
pin 15 - zegar #1 C/A
pin 16 - +5V
reszta pin - nie podczona

Musisz podczy 4 C/A tak jak poniej:
			
	 #1 C/A 
       ---. .---
       |  | |  |
 GND>--|1 '-'20|----|2    19|-->----R1----*   R1 to 1.2 kOhm rezystor
       |       |             R2                  R2 to 2.4 kOhm rezystor
  D1>--|3    18|-->----R1----*               C to 100-220 nF kondensator
       |       |             R2
  D2>--|4    17|-->----R1----*
       |       |             R2
  D3>--|5    16|-->----R1----*
       |       |             R2
  D4>--|6    15|-->----R1----*
       |       |             R2
  D5>--|7    14|-->----R1----*
       |       |             R2
  D6>--|8    13|-->----R1----*
       |       |             R2
  D7>--|9    12|-->----R1----*-----C--->wyjcie sygnau analogowego
       |       |
 GND>--|10   11|-------* zegar
       ---------
 
 out #1--->-----*
		|
 out #4--->-----*---------- kana LEWY    left?


 out #2--->-----*---------- kana PRAWY   right?
		|
 out #3--->-----*


Po maej przerbce tak chyba powinno to wyglda !!!

As soon as you have installed the Covox enhancement, try the programs 
Inertia 2.x, 3.x and 4.x by MadTeam (MODplayers) plus the Protracker (MOD 
player & editor) and Neo-Tracker by Epi/Allegresse. Next, you can
write your own programs, that support playback of any digi sample with 
8bits resolution (like MOD, WAV, IFF, SVX, etc.; just any good 8bit 
sample should do...)  Have Fun !!

