Timothy Newsham writes:

Last time I was fingering through an analog parts catalog under the telephony section I noticed a bunch of parts that generate audio-noise. Maybe some of these would be suitable (if they dont use an internal digital state machine to generate the noise).

Unfortunately, last time I checked, they used a fairly short internal PRNG to generate the "noise" (which means it's not noise at all, it's completely correllated and repeating, it just _sounds_ like noise to a human ear. To get real random noise, try using a transistor "backwards", as a zener diode. Then look at the voltage- it's quite "noisy", esp. if you use a decent-sized series resistor (try 100Kohms). -Bill (done this before)...