709 opamp source (was: RE: [sdiy] More Kraakdoos stuff)

Jeff Barganier jbarganier at satx.rr.com
Thu Jul 28 19:27:36 CEST 2005


Jim,
I ordered some from www.kelvin.com , part #600016.

Hope this helps,
Jeff Barganier

-----Original Message-----
From: owner-synth-diy at dropmix.xs4all.nl
[mailto:owner-synth-diy at dropmix.xs4all.nl] On Behalf Of Jim Thompson
Sent: Thursday, July 28, 2005 11:57 AM
To: synth-diy at dropmix.xs4all.nl
Subject: RE: [sdiy] More Kraakdoos stuff


Hello Group,
Does anyone have a source for the uA709 used in the Kraakdoos? I can't seem
to get a rise out of Rafael offlist.

Thanks

Jim

>From: Rafael_Cohen at prusec.com
>To: synth-diy at dropmix.xs4all.nl
>Subject: [sdiy] More Kraakdoos stuff
>Date: Thu, 2 Jun 2005 09:36:42 -0400
>
>
>Hey everybody,
>My Cracklebox is almost done and I have a couple questions about it.  
>First off, it is sounding pretty good... except for the fact that it 
>picks up radio a little.  Not too bad, and it depends on if I'm going 
>into a mixer or straight into a speaker (less radio through the mixer).  
>Which brings me to my other question... is there any danger of 
>electrocution because of going into the mixer?  I know that with only 
>the 9V battery and a speaker I am in no danger, but I get a little 
>scared feeling in my stomach when I plug into the mixer which is 
>plugged into the wall and then start fiddling with contact points.  I 
>have been safe about it so far, but I want to know if I can use my 
>hands on it if I'm going into a mixer.
>
>Also, re: the "line out" question, before I even tried anything else, I 
>just went straight from where the speaker would have been (my pac-tec 
>enclosure is too small for a speaker) to the output jack and into the 
>mixer and it worked absolutely fine.  After all the fuss and emails 
>about schematics, etc... I may try it with a little Shadio Rack 
>transformer I have, but it doesn't seem necessary.
>
>I followed this schematic: www.eam.se/kraakdoos except I left off the 
>optional C6 and I wired the LED up seperately.
>
>The first few times I started it up it was in oscillation before I even 
>touched anything, which threw me off, but that seems to have stopped.
>
>Thanks for all your support with parts and stuff, everyone... Very 
>satisfying making some noise last night.
>
>
>Rafael
>





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