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RODALCO said:You need to know what rating in VA's you need,
what is the primary voltage you want to use it on,
secondary voltage (s) for the load.
Source the punched soft iron laminations for the core.
varnished wire and insulated paper.
Quite a bit of work for a one off project.
It's cheaper to buy one or get one via a secondhand shop.
IIdiong said:I need to buid a step-up transformer, from 120V to 240V. I know this will require a bit of work and time, but I just want to get one done.
That's a pretty common requirement, anyway why can't you wire it hot to hot like a water heater of air conditiong unit then you won't need a transformer at all?IIdiong said:I need to buid a step-up transformer, from 120V to 240V. I know this will require a bit of work and time, but I just want to get one done.
Hero999 said:That's a pretty common requirement, anyway why can't you wire it hot to hot like a water heater of air conditiong unit then you won't need a transformer at all?