Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!cornell!batcomputer!rpi!leah!csd4.milw.wisc.edu!jgreco
From: jgreco@csd4.milw.wisc.edu (Joe Greco)
Newsgroups: comp.sys.cbm
Subject: Re: COMMODORE 64 power supply
Keywords: Help
Message-ID: <1893@csd4.milw.wisc.edu>
Date: 6 Apr 89 22:34:21 GMT
References: <185@hhb.UUCP>
Sender: news@csd4.milw.wisc.edu
Reply-To: jgreco@csd4.milw.wisc.edu (Joe Greco)
Organization: Interstellar Telephone, Telegraph, and Telepath, Inc.
Lines: 19

In comp.sys.cbm article <185@hhb.UUCP>, simon@hhb.UUCP (simon chan) wrote:
>	(b) a transfomer which convert the 120v AC into 9v AC.
>		So I can cut the cable and put the patch 9v.

Try Radio Shack.  I did.  I think I ended up with an 11VAC unit which
works just fine.

>	(c) a way to jump the Commodore64 to use DC only.
>		I don't understand why the stupid thing need 9v AC.

The AC is used for the clocks, and to generate some voltages inside
the machine.  Additionally, many user port devices need it.  It can
probably be "fudged" if you have a 12VDC supply and a little
creativity.  Anybody made a DC -> AC circuit and made a portable 64?
--
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