[sdiy] Blind Luck with Noise Generator?

[Chris Crosskey]

I've built loads of really successful noise generators, generally when I'm
trying for a VCA, VCO or VCF.....

chrisc

> -----Original Message-----
> From: Ian Fritz [mailto:ijfritz at earthlink.net]
> Sent: 08 August 2002 02:12
> To: patchell; synth-diy at dropmix.xs4all.nl
> Subject: Re: [sdiy] Blind Luck with Noise Generator?
> 
> 
> Well, a couple of years ago I measured spectra from about 50 
> of those and 
> only found one really good one and a couple of pretty good 
> ones. I say keep 
> trying anyway!  :)
> 
>    Ian
> 
> At 10:55 AM 8/7/2002, patchell wrote:
> >     I can't believe the luck I just had.  I was working on my
> >synthesizer
> >
> >http://www.silcom.com/~patchell/smb1/smb.html
> >
> >     Spent the morning Tuning the VCO's.  When I completed that, I
> >decided to get the noise source working.  Literally picked a 
> 2n3904, at
> >random, selected a bias resistor, again, more or less at 
> random...gain
> >values for the amplifier more or less at random...hooked it up (well,
> >soldered them into the board), and bingo...what sounds like 
> nice clean
> >white noise (clean noise...?).  Maybe I better go out and 
> buy a lottery
> >ticket.  Never had a noise source that worked right off the 
> bat before.
> >
> >--
> >  -Jim
> >------------------------------------------------
> >* Visit:http://www.silcom.com/~patchell/
> >*-----------------------------------------------
> >*I'm sure glad Merry Christmas comes just once a year
> >* -Yogi Yorgensen
> >------------------------------------------------
> 

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