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From: cameronjames@snoc01.enet.dec.com (James Cameron)
Newsgroups: sci.electronics
Subject: Re: 12v dc -> 9v ac converter
Message-ID: <1991Feb13.161225@snoc01.enet.dec.com>
Date: 13 Feb 91 05:14:57 GMT
References: <91043.135514UD186413@NDSUVM1.BITNET>
Sender: newsdaemon@shlump.nac.dec.com
Reply-To: cameronjames@snoc01.enet.dec.com (James Cameron)
Organization: Digital Equipment Corporation
Lines: 18

In article <91043.135514UD186413@NDSUVM1.BITNET>, UD186413@NDSUVM1.BITNET (Space
Studies Student Organization) writes:

>I'm interested in building a converter that would allow me to run a
>Commodore VIC 20 computer from a 12v motorcycle battery.  The
>computer needs a 9v ac input.  Is it possible to synthisize this
>easily?

For me this seems strange, since the computer's power supply will
promptly convert the AC input back to DC.  Why not open the box and
provide the DC source after the rectifier section?

Otherwise, the simplest, but most inelegant solution, is to buy an
inverter for DC to house-voltage AC, then plug in the computer's
transformer... 

James Cameron
(cameronjames@snoc01.enet.dec.com)