[sdiy] Kraakdoos line out

[Ken Stone]

Use a transformer instead of the speaker? An 8 ohm to whatever wired with
the 8 ohm coil in place of the speaker may do the trick for you.

Ken

>At 06:56 PM 5/20/05, Metrophage wrote:
>>No dice!
>
>Aww ... too bad!  Still, there has to be something simple that will work.
>
>>What you suggested, Ian is indeed what I usually associate with audio
>>output circuits, trying to keep the voltage managable and remove DC.
>>And now I have >some< idea how this is supposed to work.
>>
>>Whereas it is good for other circuits, it does not work for my
>>Kraakdoos. More accurately, the output does work, but it changes the
>>behavior of my Kraakdoos so much that it is almost unplayable. I have
>>been getting a variety of sounds out of this thing - but when I connect
>>the new output jack to a mixer or soundcard, the Kraakdoos output
>>changes to a fairly constant buzz which does not change very much as it
>>is handled.
>
>Are you saying that the added cap and resistors themselves do not hurt the 
>operation, ie there is only a problem when the cable is also connected?
>
>>I was hoping this solution would have worked, but I need to think of
>>something else!
>
>The next step might be to add an FET source follower between the opamp and 
>the big cap.  With two FETs and two resistors you can make a high impedance 
>buffer with no offset voltage.  Wouldn't take up much room!
>
>   Ian 
>
>
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Ken Stone   sasami at hotkey.net.au or sasami at cgs.synth.net
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