Where to buy a mains trasnformer that outputs 7.5V DC

Droopy Dick

Droopy Dick

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My mother came home from the USA yesterday with the latest 'toy' for her knitting machine.

Being American, of course, it has a transformer that converts 110V 60Hz AC to 7.5V DC.

Luckily I managed to stop her before she plugged the damned thing into the socket converter.

But, where on earth can I find a magic black box that will plug into a UK mains socket and output 7.5V DC?
 
Why not just get one of those step down transformers that US tourists use when they come to Europe? Takes 220V down to 110V. The 50/60Hz won't matter as the AC is rectified to DC.

Search Ebay or just go to Maplin http://www.maplin.co.uk/Search.aspx?criteria=RP90X&DOY=6m3 is a 45W one but they have 100W, 200W and 300W versions
 
Droopy Dick said:
My mother came home from the USA yesterday with the latest 'toy' for her knitting machine.

Being American, of course, it has a transformer that converts 110V 60Hz AC to 7.5V DC.

Luckily I managed to stop her before she plugged the damned thing into the socket converter.

But, where on earth can I find a magic black box that will plug into a UK mains socket and output 7.5V DC?
Click to expand...

Maybe I'm misinterpreting here, but why can't she plug it into a socket converter???

I presume the 'socket converter' is a 240 3pin plug that has a 110v merkin socket on the back of it??

If so, she can just plug the 110 plug in, the transformer (effectively the second transformer now) will take it to 7.5 v and it'll work....it won't be as efficient as it could be 'cos you're going to 7.5 v in two steps and each time you lose a bit, but if that's what she has got, it'll work :nenau
 
Ah -ha!

Taking a break to make some hot chocolate, I pondered a while.

I recalled that I used to have an American device that came with an adapter to use in the UK.

Some ferreting about in the bottom of a dark cupboard has produced a plastic brick that changes 240V/50Hz to 110V/60Hz ...

I'll lob that in my mum's direction.

Thanks for the inputs chaps.
 
Droopy Dick said:
Some ferreting about in the bottom of a dark cupboard has produced a plastic brick that changes 240V/50Hz to 110V/60Hz ...
Click to expand...


That'd be some really clever device that converted 50Hz to 60Hz (the voltage chage is easy).

Probably doesn't make much difference for a knitting machine.

Greg
 
Greg Masters said:
That'd be some really clever device that converted 50Hz to 60Hz (the voltage chage is easy).

Probably doesn't make much difference for a knitting machine.

Greg
Click to expand...

It's not a knitting machine but a device that programs patterns or something far too boring to get interested in.

As for the voltage/frequency change, I was merely quoting what it said on the label on the front of the device.
 
Greg Masters said:
Probably doesn't make much difference for a knitting machine.
Click to expand...

Typical flippant attitude of the anti-knitting brigade. I'd like to see you say that when YOU are walking around with one sleve shorter than the other and a finger missing from your gloves on a cold day....
 
Maplins....

Ive just bought mine from there.
£26 to convert 240 to 110volt, that will power anything upto 100Watts.

Well recommended
 
Nippy Normans supply Touratech, Wunderlich, Desert Fox and many other makes of accessories.
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