Path: utzoo!utgpu!news-server.csri.toronto.edu!clyde.concordia.ca!uunet!cbmvax!grr
From: grr@cbmvax.commodore.com (George Robbins)
Newsgroups: comp.sys.amiga.hardware
Subject: Re: ZIP rams for 2630
Message-ID: <11271@cbmvax.commodore.com>
Date: 3 May 90 03:26:27 GMT
References: <2138@zipeecs.umich.edu>
Reply-To: grr@cbmvax (George Robbins)
Distribution: na
Organization: Commodore, West Chester, PA
Lines: 21

In article <2138@zipeecs.umich.edu> gilgalad@dip.eecs.umich.edu (Ralph Seguin) writes:
> 
> Howdy.  Well, I just went out and purchased some ZIP rams.  Now I have
> run into a problem.  The ZIPs that I got have a pin missing in every chip

The 1M DRAM pinouts have an "unused pin", that would be the next address line
for 4M DRAMs.  Apparently some vendors have decided to physically omit the
pin in their ZIP packaging.

>                                  Also, would it be alright to solder ZIP
> sockets?  If so, where can I get good (hopefully cheap), ZIP sockets?

Sockets are one of the downsides of ZIPs.  The legs are mechanically much
more flexible than DIPs, and it's very easy to bend the legs instead of
getting them to go into sockets.  Several vendors offer a range of sockets
from (relatively) cheap single-wipe designs to the "screw machine" type.

-- 
George Robbins - now working for,     uucp:   {uunet|pyramid|rutgers}!cbmvax!grr
but no way officially representing:   domain: grr@cbmvax.commodore.com
Commodore, Engineering Department     phone:  215-431-9349 (only by moonlite)