Path: utzoo!utgpu!news-server.csri.toronto.edu!rutgers!usc!wuarchive!uunet!zephyr.ens.tek.com!tekchips!tekgvs!paulba
From: paulba@tekgvs.LABS.TEK.COM (Paul T. Barton)
Newsgroups: comp.os.os9
Subject: Speech Cartridge ...
Keywords: coco, speech, os9
Message-ID: <8539@tekgvs.LABS.TEK.COM>
Date: 4 Dec 90 19:03:30 GMT
Reply-To: paulba@tekgvs.LABS.TEK.COM (Paul T. Barton)
Distribution: usa
Organization: Tektronix, Inc., Beaverton,  OR.
Lines: 12


	Ok, here's the scoop.  I have a Tandy Speech/Sound Cartridge.
( used )  It is missing some parts, R1, R2, R5, R11, R17, C8, C14, Q1.
The guy it got it from said it is blown in trying to convert it to 2MHz
for the COCO-3.  From the looks of the workmanship, it's possible.
I have NO documentation for this board.  What is it, and is it still
available from RS ?  I have the OS9 Pan Program that drives this beast,
I suppose I could power it up, and try it, but I would like to make sure
that it won't 'really' fry if I do that.
The chips are: (GI) PIC7040-510, (GI) SP0256A-AL2, (GI) AY-3-8913.

Got any schematics or ideas or parts values or mods to 2MHz ?