Posted By
Chicken
on 2010-08-21
17:48:21
 |  Re: Voltage conversion from UK to US
Only the drives with internal PSUs (e.g. 1541, 1551 and 1571) could be harder to get running. Even though Sixteen Plus didn't list any of these, I searched the forum for answers.
I compiled a few facts on this topic from older threads. For your convenience I just quoted the relevant stuff. Some of it applies to all machines anyway.
http://plus4world.powweb.com/forum/4621
JamesC
"I have tried this on both a 1541's 110v power transformer as well as 1551's transformer on a 110 to 220v step-up transformer.
Both the 1541 and 1551 have 16khz crystals, otherwise I would suspect 50/60hz differences. Two other people in the States that also have 1551s have simply changed the transformer without changing the crystal, and theirs work fine."
http://plus4world.powweb.com/forum/2404
JamesC
"On YOUR 1551 do you have to do anything for the 50Hz - 60Hz change, or does it work fine on 60Hz?"
BushRat
"Had no problem. Remember that those bigger 50hz xformer core were happy and ran cool on 60hz. The 60hz cores will run hot on 50hz.
The 1551 that I use is in a US 1541 case and 60hz supply... never had a glitch."
http://plus4world.powweb.com/forum/5140
Crown
"Speed of these machines are not dependant on the frequency of the power supply, first of all the power is converted from AC to DC and in DC land you see nothing from the frequency of the AC signal.
Speed is decided by the clock crystal, and drives released in the States and in Europe has the same crystal, that's why you don't need any modification."
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