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Calg5



Joined: 06 Apr 2010
Posts: 176
Location: Calgary Canada
PostPosted: Sun Mar 06, 2016 1:21 pm    Post subject: Need help identifying this one Reply with quote
Any forum members know what this is?
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CPUShack



Joined: 16 Jun 2003
Posts: 34259
Location: State of Jefferson, USA
PostPosted: Sun Mar 06, 2016 2:02 pm    Post subject: Reply with quote
Remember Microsystems International was a telecom company

the MH8900J is a microelectronic tone generator

Its talked about here:
https://archive.org/stream/73-magazine-1974-11/11_November_1974_djvu.txt
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Calg5



Joined: 06 Apr 2010
Posts: 176
Location: Calgary Canada
PostPosted: Sun Mar 06, 2016 2:06 pm    Post subject: Reply with quote
Thanks John
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