[sdiy] single 9 volt battery white noise source

[Paul Perry]

----- Original Message ----- 
> Ah, yes.  Still, wouldn't it still work if the base were simply grounded
> instead?  According to the 2N3904 datasheet, the emitter-base breakdown
> voltage is 6V, so 9V should do the trick, no?

I think the data sheet is guaranteeing that the breakdown is "not less than 
6V".
So, there is no saying..
In some ways, using a PIC or similar micro is probably a better way (and 
then
the voltage can go down to +5!)
Although by selecting transistors, you might get a 'non ideal' noise source 
that
is musically preferable. Which is one of the advantages of DIY.

paul perry Frostwave Melbourne Australia