Diode noise

[Ian Fritz]

Is that Ge?


----- Original Message ----- 
From: "Scott Gravenhorst" <chordman at earthlink.net>
To: <synth-diy at node12b53.a2000.nl>
Sent: Wednesday, August 30, 2000 1:31 PM
Subject: Diode noise


> 
> 
>    +8v
>    |
>    |     1 meg           .047
>    +---/\/\/\/\/----+-----|(-----+-------> to opamp
>                     |            |         large gain
>                     |            <         amplifier
>                    ---           <
>             1N34    ^            < 470K
>                    /|\           <
>                     |            |
>                     |            |
>                     |           GND
>                    -12v         
> 
> 
> I stopped at the first diode I tried because I got silky smooth
> hiss from it.  No popcorn.  I also listened to the noise doing a 
> slow hi-rez lpf sweep.  Goes from thunder to shhhhh.  It looks
> very good on the scope too.  No repeating patterns as in 60hz.
> 
> Harry:  I tried replacing the cap with a resistor (470K) and
> got _nothing_.
> 
> -- Scott Gravenhorst : On The Edge, but the Edge of What?
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> 
> 
> 
>