Path: utzoo!attcan!utgpu!jarvis.csri.toronto.edu!rutgers!apple!oliveb!tymix!opus!mikemo
From: mikemo@opus.uucp (Mike Mo)
Newsgroups: comp.sys.cbm
Subject: Re: C64 power supply
Message-ID: <2752@tymix.UUCP>
Date: 25 Sep 89 20:56:34 GMT
References: <7296@max.u.washington.edu>
Sender: news@tymix.UUCP
Reply-To: mikemo@opus.UUCP (Mike Mo)
Organization: Tymnet NTD, San Jose CA
Lines: 22
Sender:Mike Mo
Distribution:comp.sys.cbm

Scott:
About your power supply, I have some personal experince that may be useful.
I repaired two C64 power supply before.  None of them had a bad transformer.
Their common problem is the 5V regulator.  After I changed the failed regulator
they all worked fine. My response to your questions is as follows:
1. Transformer does go bad if  it is  shorted internally, but it is very rare.
2. If you need a replacement transformer,  it should have 120V primary, two
   secondary winding, two 9V 2A windings would be fine or try to use an 18V, 2A
   center tapped secondary (break the center tap, so it is two 9V 2A windings).
   For transformer part number please see Radio shack catalog?
Good Luck!




/* Disclaimer:  McDonnell Douglas has nothing to do with my opinions          *//* Mike Mo                                                                    */
/* McDonnell Douglas Tymnet                                                   */
/* San Jose, Ca                                                               */
/* (408)922-6032                                                              */