[sdiy] Modding Matrix 6R PSU?

[cheater cheater]

I need to get charged up every now and then, that's all

On Wed, Sep 23, 2009 at 9:57 PM, Tom Wiltshire <tom at electricdruid.net> wrote:
> Chuckle chuckle...me too. I keep telling the men in white coats that I
> wasn't permanently affected...
>
> I do feel a bit like this cat's used up seven or eight lives already though.
> Going to take it pretty easy from here on in and not take too many chances.
>
> Good luck getting it going,
> Tom
>
>
> On 23 Sep 2009, at 21:38, cheater cheater wrote:
>
>> Don't worry, I got shocked by 220V thrice on different occasions as a
>> small kid. One more won't do anything the previous ones couldn't.
>>
>> D.
>>
>> On Wed, Sep 23, 2009 at 4:49 PM, Tom Wiltshire <tom at electricdruid.net>
>> wrote:
>>>
>>> I did something similar to a US Korg Polysix once upon time.
>>>
>>> Here's how I'd go about it:
>>>
>>> 1) Disconnect the transformer secondary wires from the rest of the power
>>> supply so you don't blow anything up.
>>> 2) Test it as it stands now so that you know how much AC the AC/DC
>>> conversion part of the power supply is expecting. You need a 240/120V
>>> adaptor for this. Beg/borrow or steal one from a building site.
>>> 3) Have a cup of coffee so you brain is awake enough to deal with mains
>>> electricity and/or stand on a rubber bathmat ;)
>>> 4) Disconnect everything
>>> 5) Have a look at the primary side of the transformer. Usually this
>>> consists
>>> of a pair of windings of which one is used for 120V and both are used (in
>>> series) for 240V. Sometimes there'll be four wires, two each for the two
>>> windings, and sometimes there are only three, with one common to both
>>> windings.
>>> 6) Solder it up with both primary windings in series
>>> 7) Reconnect and test the secondary output. With a bit of luck, the
>>> lights
>>> in your house are still on, and the secondary voltage is the same as it
>>> was
>>> in step 2.
>>> 8) If it is, wire it all back up and bingo!
>>>
>>> Fur gawd's sake, be careful.
>>>
>>> T.
>>>
>>> On 23 Sep 2009, at 09:23, cheater cheater wrote:
>>>
>>>> Hi guys,
>>>> I have recently bought a Matrix6R. It's a 120V version, supposedly.
>>>> However, it turns out that the transformer inside it is rated as:
>>>>
>>>> 100V/230V
>>>> 41V    30VA
>>>>
>>>> ..which looks promising I guess?
>>>>
>>>> The whole marking on it is:
>>>> BANDO EP-55
>>>> (307-01257)
>>>> BE2-GJM
>>>>
>>>> 61-12663
>>>> 100V/230V
>>>> 41V 30VA
>>>> and then a line of Japanese :)
>>>>
>>>> soooo.... anyone got a clue what I'd do to make this thing eat 230V?
>>>>
>>>> Thanks
>>>> D.
>>>> _______________________________________________
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>>>>
>>>
>>>
>>>
>>
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>
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