Re: [AH] Switching MC-4 voltage to 120 from 220

From Kenny Balys
Sent Thu, Dec 27th 2018, 23:03

The MC-4 is rated at 30W sustained so power up is anyone's
guess. Lets use the old method of doubling and then adding 30...
and then rounding up to the nearest 100 and we have.. 100W

Thats the minimum I would feel comfortable with.

Here is one from Fry's Electronics that promises 200W:

https://www.frys.com/product/3696645?site=sr:SEARCH:MAIN_RSLT_PG

Something like this will do the job nicely.



On 27.12.18 22:57 , Frank Bonarrigo wrote:
> It is a zoo out there for step down transformers
>
> A suggestion for an affordable step down transformers would help a lot.
>
> Any favorites
>
>> On Dec 27, 2018, at 5:50 PM, Kenny Balys <xxxxx@xxxxxxxx.xxx> wrote:
>>
>>
>> You have to change out the transformer internally.
>>
>> The 220 VAC transformer is part 022H044D and the US /  117 VAC transformer
>> is part 022H044C.
>>
>> There may also be slight changes on the power supply board itself. At least
>> the fuses will be different.
>>
>> You may be able to trade with someone in Europe wanting your transformer.
>>
>> What I would do personally is just use a 220V to 120V step down transformer
>> and leave it at that.
>>
>>
>>
>>
>> On 27.12.18 22:36 , Frank Bonarrigo wrote:
>>> How do I switch a Roland MC-4 from 220 volts to 120 volts for USA standard? Analogue gods I summon thee
>>>
>>> Thanks
>>>
>
>