Slightly OT: Tone Generators

[Paul Maddox]

Keith,

  You could do this with a 556 and about half a dozen parts..

  half of the 556 gnerates the tone, and the other pulses it.

  Paul

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-----Original Message-----
From:	Keith Bailey [SMTP:KARIK at GLOBALNET.CO.UK]
Sent:	Tuesday, November 09, 1999 7:09 PM
To:	Synth Diy
Subject:	Slightly OT: Tone Generators

I am currently studying for my GCSE electronics and was wondering if any
ofyou cold think of a chip which  could produce a pulsing tone (like when
lorries reverse) without to much external circitry as it needs to be quite
small.
Thanks
Keith