Transformer input wiring question

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Vertigo
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Transformer input wiring question

Post by Vertigo »

I recently bought an old effects unit from europe and knew that the unit itself has an IEC plug and an easy way to modify the power input for the US supply. I didn't know that the foot controller had a hardwired power cord (I thought it received power from the unit) with an EU plug and I'd like to swap it out.

I can't find any information at all on this transformer, but it looks like TC Electronics made provisions to accommodate different voltages late in the manufacturing process by configuring a jumper or jumpers. I'm hoping that someone will either validate my thinking or tell me I'm an idiot.

Here's the top and bottom of the circuit
IMG_2009.jpeg
IMG_2008.jpeg
This is how I *think* it could work, by reorienting the jumper and adding another (top is current, bottom is the modification).
TC 0144 PT.png
I assume I'd have to double the fuse rating as well. Does this seem sound?
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Sean Chaney
sluckey
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Re: Transformer input wiring question

Post by sluckey »

I agree. They made it easy for you. Phase dots help visualize.
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Vertigo
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Re: Transformer input wiring question

Post by Vertigo »

Thank you for looking at it. I get the phase aspect, it’s the 220v series being changed to 110v parallel that has me feeling unsure. It seems correct to me, but I still feel very much a novice
Sean Chaney
sluckey
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Re: Transformer input wiring question

Post by sluckey »

You've got it figured out. Light it up! :mrgreen:
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Vertigo
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Re: Transformer input wiring question

Post by Vertigo »

Thank you!
Sean Chaney
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