>It seems to me the alternatives are as follows:

        Think about an 18-20 bit shift register (2 more chips) and a EPROM (one=
 more chip) with an R-2R ladder or a ZN426 (oh no! one more chip!), to have=
 about 20 seconds of nice sound ;o)

        Or forget everything and use an ISD1000-something, with 10 to 40 seconds=
 of pure dirty sound ;o)


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Alexandre Souza
taito@terra.com.br
http://planeta.terra.com.br/lazer/pinball/

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