B.E.I uSounder S-100 board...

William Sudbrink wh.sudbrink at verizon.net
Wed Sep 16 11:47:38 CDT 2020

I just picked up one of these on a lark.  It has an SN76477 sound

effects chip on it.  Not much other info besides the copyright,

1978.  Anyone have schematics or a user manual?



Bill S.

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