Discuss Source for desklamp transformer in the UK Electrical Forum area at ElectriciansForums.net

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hi, this is my first post.
I doing a simple repair of my wife’s favorite 50w halogen (50w, 30w), desklamp.
I think the transformer died.

it is a 120v to 12v and spits out 50w or 30w current by way of a toggle switch.

no current out of the dc end, might as well replace it. Easier said.

what is a good source in US for a small transformer like this? All that comes up is alibabba. I guess it is chinese afterall.
e1-66-as2-9967 : 12v 50w-30w
 

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This is an application-specific type of transformer. It has only one secondary winding, but the output voltage can be selected by a tap in the primary. I am not sure I have ever seen exactly that arrangement in a transformer on general sale, it was probably made for the lighting manufacturer and if they are no longer around, you might have to cannibalise another fixture to get a drop-in replacement.

If you don't use the 30W tapping, you could use a straightforward 12V 50W transformer either wirewound or electronic. For variable output, you could use a dimmable electronic transformer with an inline dimmer in the cord. So there are ways to achieve the same result by different means.
 
hi, this is my first post.
I doing a simple repair of my wife’s favorite 50w halogen (50w, 30w), desklamp.
I think the transformer died.

it is a 120v to 12v and spits out 50w or 30w current by way of a toggle switch.

no current out of the dc end, might as well replace it. Easier said.

what is a good source in US for a small transformer like this? All that comes up is alibabba. I guess it is chinese afterall.
e1-66-as2-9967 : 12v 50w-30w
Go to your local electrical parts house or go to Lowe’s or Home Depot. It’s a simple transformer 120vac to 12vac
 
Go to your local electrical parts house or go to Lowe’s or Home Depot. It’s a simple transformer 120vac to 12vac
Well, no it is not a simple transformer. 120v comes in, 12v comes out In either 50w or 30w determined by the 3-position toggle that I did not show: [left 30w-center OFF-right-50w] . Thank you for responding.
 

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