Re: Apple //c sound - 3 channels plus noise?!

[mjmahon@aol.com (Michael J. Mahon)]

Bill Garber wrote:

>"Richard Kilpatrick" <delorean@NOSPAMbtconnect.com> wrote 
>in message BD268D8D.55F8%delorean@NOSPAMbtconnect.com">news:BD268D8D.55F8%delorean@NOSPAMbtconnect.com...
>: Okay, this is probably one of those "well, duh!" 
>: moments, but...
>: 
>: Seriously, I always thought that //c and enhanced 
>: //e were pretty much identical. So any sounds that 
>: emerged from the //c were the regular, friendly 'beep'.
>
>Judging from the schematic and looking at the board itself, 
>it appears that the //c has some sort of amplifying circuit 
>that converts the speaker clicks into some type of triangle 
>or square wave. I'd have to put the scope on it to be sure. 
>
>Michael J. Mahon?, where are you on this?  :o) 

It's just an audio amplifier--no particular waveshaping
at the usual audio frequencies.

-michael

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