Re: c64 / vic 20 power supply replacement

From: Francesco Messineo <>
Date: Fri, 28 Oct 2016 21:42:55 +0200
Message-ID: <>
On Fri, Oct 28, 2016 at 9:39 PM, Gerrit Heitsch
<> wrote:
> On 10/28/2016 09:11 PM, Francesco Messineo wrote:
>> On Fri, Oct 28, 2016 at 8:47 PM, Gerrit Heitsch
>> <> wrote:
>>> I found it easier to just open up the PSU, remove the rectifier,
>>> capacitor
>>> and 78S05 regulator. Then add a better rectifier, capacitor and a
>>> switching
>>> regulator. The latter you can get on a small PCB on ebay cheaply. I like
>>> the
>>> boards based on the MP1584.
>>> From the outside the result looks the same, the PSU no longer runs hot,
>>> you
>>> get the real 9V AC and, on the +5V, you get more than the 1.5A the old
>>> PSU
>>> gave you.
>> this would be great if only the European PSUs weren't filled with
>> epoxy, making them
>> virtually unfixables :(
> Depends on the PSU... The early ones (*) have only the transformer part
> filled with resin. The part that contains the capacitor and rectifier is
> hollow. The only problem is to get the bottom off, but that's easy once you
> figure out how it's done. Once the bottom is off, you have access to
> everything you need to replace the regulator.

hm you give me a great hope. I have a few "early" ones and only one of
the newer :)
I have definitely to figure out how to get off the bottom!

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Received on 2016-10-28 20:01:26

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