View single post by Slider2732
 Posted: Apr 5th, 2008 07:27 PM
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Slider2732

 

Joined: Mar 3rd, 2008
Location: Muskogee, Oklahoma USA
Posts: 349
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 Are these chips like the Texas Instruments ones from days of old, Speak&Spell etc ?
Or the answering machine ones perhaps, that announce messages and time of day ?

If so, i'm wondering if they can be driven by a square wave oscillator (simple 555 timer circuit) along with a white noise pair of transistors to 'dirty' the input and be made to produce random voice parts !
Or, maybe, drive them at a slightly less than ideal voltage and have them randomly sound...as happens to some electronics with near dead batteries.
I found that a 74161 binary counter would output random data if driven at 3V and thats the line of my thinking.