Path: utzoo!utgpu!news-server.csri.toronto.edu!rpi!zaphod.mps.ohio-state.edu!sol.ctr.columbia.edu!emory!Dixie.Com!jgd
From: jgd@Dixie.Com (John G. DeArmond)
Newsgroups: comp.sys.ibm.pc.hardware
Subject: Re: Problems finding a 8 bit D->A 14 pin chip
Message-ID: <20132@rsiatl.Dixie.Com>
Date: 27 May 91 17:36:07 GMT
References: <1991May24.232649.5062@vax5.cit.cornell.edu>
Distribution: comp
Organization: Dixie Communications, The South's First Commercial Public Access Unix
Lines: 18

u9hx@vax5.cit.cornell.edu writes:

>Has anyone out there ever built the parallel port D->A converter to listen to
>Amiga sound files?  (The circuit included in MODPY112.ZIP)?  I'm trying
>to build one, but I can't find an equivalent for the 8 bit d->a converter
>chip  ZN426E.

You don't really need one.  An R/2R resistor network across the bits
and whose common leg is connected to an amplified speaker does just
fine.  That's what the Covox Speechthing is as a point of interest.

John

-- 
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