Path: utzoo!mnetor!uunet!tektronix!reed!percival!bucket!leonard
From: leonard@bucket.UUCP (Leonard Erickson)
Newsgroups: comp.sys.tandy
Subject: Re: Tech/specs for the Orchestra-90
Message-ID: <782@bucket.UUCP>
Date: 24 Feb 88 05:06:16 GMT
References: <1354@vu-vlsi.UUCP>
Reply-To: leonard@bucket.UUCP (Leonard Erickson)
Organization: Rick's Home Grown Unix; Portland, OR
Lines: 22

The original article either didn't get here or hasn't gotten here yet. So I'm
posting this.

For what it is worth, the CoCo version of the Orchestra-90 includes a
schematic in the manual. Given Tandy's standard practices, it's probably
the M3/M4 unit with as few changes as possible.

Aside from resistors & capacitors it has the following:

IC1	2764	rom for CoCo software?
IC2	LS133
IC3	S138 or ALS138
IC4	LS374
IC5	LS374
IC6	4558

The circuit looks pretty simple...
-- 
Leonard Erickson		...!tektronix!reed!percival!bucket!leonard
CIS: [70465,203]
"I used to be a hacker. Now I'm a 'microcomputer specialist'.
You know... I'd rather be a hacker."