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Path: utzoo!linus!security!genrad!grkermit!masscomp!clyde!floyd!harpo!ihnp4!inuxc!inuxd!porter
From: porter@inuxd.UUCP
Newsgroups: net.micro.cbm
Subject: Re: User Port/RS232 interface - (nf)
Message-ID: <423@inuxd.UUCP>
Date: Fri, 20-Jan-84 08:23:49 EST
Article-I.D.: inuxd.423
Posted: Fri Jan 20 08:23:49 1984
Date-Received: Sat, 21-Jan-84 07:00:55 EST
References: <4955@uiucdcs.UUCP>
Organization: AT&T Consumer Products Div., Indianapolis
Lines: 15

Why spend even 20 bucks for an RS232 adapter when
you can build one yourself.  Compute! had an article
about a year and a half ago (back before the days
of 64, but just after the introduction of the VIC),
about how to make one yourself.  If you only require
3 wire RS232 it is even easier.  Two transistors, one
7400, a couple of resistors, diodes and capacitors -
parts in any good junk box at home.   If you need
full RS232, then use the RS232 driver chips with the
diodes and capacitors.  The junk box version works
fine for me.

Jeff Porter  (inuxd!porter)
AT&T Consumer Products
Indianapolis