Re: plus4 power supply

From: Julian Perry <jp_at_digitaltapestries.com>
Date: Fri, 21 Sep 2012 09:50:03 +1000
Message-ID: <195604156.20120921095003@digitaltapestries.com>
Hello Gerrit,

Friday, September 21, 2012, 1:37:26 AM, you wrote:

> On 09/20/2012 02:31 PM, Julian Perry wrote:
>> Hello Hegedūs,
>>
>> Thursday, September 20, 2012, 9:39:20 PM, you wrote:
>>
>> When replacing my C64 power supply innards with a regulated switchmode
>> version, I noted a voltage drop of 0.2V across the power lead into the
>> C64 under load - so the PSU needed to output 5.2V, to have 5V
>> available at the C64. (I adjusted it by measuring the voltage of the
>> 5V rail on the PCB, with the C64 operating).

> Which one did you use? www.pollin.de has a perfect fit for the old C64
> and Plus/4 supplies for less than 5 Euros: Astrodyne OFM-0101 (5V,2A).
> Order nr. is 350 765. If you clean out the empty space in the PSU 
> completly, the PCB fits perfectly.
> It's also adjustable, so you can have the 5.2V if you need them.

I used a 3A, over-voltage, over-load and surge-protected one from Element14
http://au.element14.com/xp-power/ecl15us05-t/psu-15w-5v-mini-chassis-mount/dp/1337088
It's (too) pricey, but did the job nicely.

I wrote up the whole business on C128.com
http://c128.com/comment/539#comment-539


> Again: You need to work on 230V for this, don't, unless you know what
> you're doing.

Indeed.



       Message was sent through the cbm-hackers mailing list
Received on 2012-09-21 00:00:32

Archive generated by hypermail 2.2.0.