From: Juha.Ursin@hut.fi (Juha Ursin)
Subject: Re: DA-muunnin centronicsiin
Organization: Helsinki University of Technology, Finland
Distribution: sfnet
Date: 22 Jan 93 20:28:11 GMT

In article <1jm932INN4hf@cc.tut.fi> vihuri@lehtori.cc.tut.fi (Vihuri Tapio) writes:

>Niin, mist{p{ l|yt{is valmiin "k|yh{nmiehen" DA-muuntimen kytkinkaavion?
>Siis sen vastusverkon Centronics-porttiin. Samaten mink{h{n niminen
>on sen driveri windowsille?
>T.Tapio Vihuri vihuri@cc.tut.fi 931-186692, yksrivisen sigun kannattaja!

From aa339@Freenet.carleton.ca Mon Dec 28 19:45:49 1992
Newsgroups: comp.sys.ibm.pc.soundcard
From: aa339@Freenet.carleton.ca (Etienne Tasse)
Subject: REPOST: Windows 3.1 Sound Driver for Covox/LPT DAC
Reply-To: aa339@Freenet.carleton.ca (Etienne Tasse)
Organization: The National Capital Freenet
Date: Tue, 22 Dec 1992 20:33:00 GMT


Back by popular demand ...

Part 1: Schematic for a Covox Speech Thing DtoA (The poor man's sound card)

 
LPT Port   25   2    3    4    5    6    7    8    9    Pin#
DB25 Male  Gnd  D0   D1   D2   D3   D4   D5   D6   D7   Signal Name
           |    |    |    |    |    |    |    |    |
           |    r2   r2   r2   r2   r2   r2   r2   r2
           |    |    |    |    |    |    |    |    |
           |_r2_|_r1_|_r1_|_r1_|_r1_|_r1_|_r1_|_r1_|_r1____c1__+
           |                                            |
           |                                            r1 To Amplifier
           |____________________________________________|______-

r1 = 10Kohm 5% or 1%
r2 = 20Kohm 5% or 1%  
c1 = 100nF (optional)
 
The output is not enough to drive a speaker, you NEED an amplifier.

ObSource: Mark J Cox's ModPlay 2.19b - HARDWARE.DOC

Part 2: Driver for Windows 3.1
-------------------------------------------------------------- cut here
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end
sum -r/size 9161/9848 section (from "begin" to "end")
sum -r/size 45765/7012 entire input file
-------------------------------------------------------------- cut here
-- 
 Etienne TassEh? //  Internet> aa339@freenet.carleton.ca   //  Earth:
Ottawa, Canada  //  Fidonet> U=Floyd A=1:163/524          //  Mostly Harmless.
--
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   Juha.Ursin@hut.fi    				p. 7733119   
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