Because a few people have asked about the old
mechanical type Navy analog fire control computers:
I have just put up a couple pictures of the Mk.1
fire control computer in my analog museum.
http://www.best.com/~dcoward/analog/fordsperry.htm
I also recently picked up a couple manuals for the
Mark 1 computer:
COMPUTER MARK I AND MODS DESCRIPTION AND OPERATION
(OP 1064) June 1945
Now I can stop envying these young guys with computers
that are older than they are. I don't have the computer,
but I have a user's manual that's older than me. :)
BASIC FIRE CONTROL MECHANISMS (OP 1140)
September 1944
This manual describes the workings of all of the basic
mechanisms (multipliers, integrators, resolvers, differentials,
synchros, cams, etc.)
I mention this because one of these basic mechanisms was up
for bid on eBay this week. And the pictures may disappear any
minute!!
http://cgi.ebay.com/aw-cgi/eBayISAPI.dll?ViewItem&item=330171722
This is called a Component Integrator. It has two input shafts,
a Speed Input and a Angular Input. And it has two output shafts,
one is the product of the speed input and the cosine of the
angular input and the other is the product of the speed input
and the sine of the angular input.
Now back to the world of TTL logic, sorry for the interruption.
--Doug
====================================================
Doug Coward dcoward_at_pressstart.com (work)
Sr. Software Eng. mranalog_at_home.com (home)
Press Start Inc.
http://www.pressstart.com
Sunnyvale,CA
Curator
Analog Computer Museum and History Center
http://www.best.com/~dcoward/analog
====================================================
Received on Fri May 19 2000 - 11:30:21 BST