Message-ID: <325@hou2a.UUCP>
Date: Fri, 13-Apr-84 16:59:10 EST
Article-I.D.: hou2a.325
Posted: Fri Apr 13 16:59:10 1984
Date-Received: Sat, 14-Apr-84 09:30:01 EST
References: <212@felix.UUCP>, <1@ucbvax.UUCP>, <660@sdcsvax.UUCP>
Organization: AT&T Bell Labs, Holmdel NJ
Lines: 4

FORTUNE Magazine estimated that the average mark-up of a game
cartridge is 300%.

			S. Kho

Message-ID: <2053@ihnss.UUCP>
Date: Fri, 27-Apr-84 13:38:52 EST
Article-I.D.: ihnss.2053
Posted: Fri Apr 27 13:38:52 1984
Date-Received: Sat, 28-Apr-84 09:40:33 EST
Organization: AT&T Bell Labs, Naperville, IL
Lines: 5

Unless I was mistaken, a few months ago The Rainbow (the major Coco rag)
had quite a long and detailed article on this sound chip, how to program it,
etc.  I could find out the exact issue of The Rainbow if anyone cares.
Funny it should pop up in a 6809 magazine, since that's what the Vectrex uses.
	mike k

Message-ID: <14600014@hp-pcd.UUCP>
Date: Tue, 8-May-84 12:45:00 EDT
Article-I.D.: hp-pcd.14600014
Posted: Tue May  8 12:45:00 1984
Date-Received: Mon, 21-May-84 06:15:08 EDT
References: <2053@ihnss.UUCP>
Organization: Hewlett-Packard Portable Computer Division - Corvallis, OR
Lines: 27
Nf-ID: #R:ihnss:-205300:hp-pcd:14600014:000:880
Nf-From: hp-pcd!bill    May 11 08:45:00 1984

Is that AY-3-8192 or AY-3-8912?  If it's in a Vectrex it's over a year
old, and there's no AY-3-8192 in my 1982 General Instruments data book.
But there is an AY-3-8912 Programmable Sound Generator with the
following pinout:
		    __________
		   |    \/    |
Analog channel C  [| 1      28|]  DA0
	  Test 1  [| 2	    27|]  DA1
	VCC (+5)  [| 3      26|]  DA2
Analog channel B  [| 4	    25|]  DA3
Analog channel A  [| 5	    24|]  DA4
       VSS (gnd)  [| 6	    23|]  DA5
	    IOA7  [| 7	    22|]  DA6
	    IOA6  [| 8	    21|]  DA7
	    IOA5  [| 9      20|]  BC1
	    IOA4  [|10      19|]  BC2
	    IOA3  [|11	    18|]  BDIR
	    IOA2  [|12	    17|]  A8
	    IOA1  [|13	    16|]  RESET\
	    IOA0  [|14	    15|]  CLOCK
		   |__________|

Is this the same chip?  Or is there a newer one?
I'd include a detailed description of the chip, but it's pretty long.

bill frolik
hp-pcd!bill