Hello; I need a new power transformer for a new personal project; maybe roughly 50VA. It would be best if I could wrap my own secondary windings. One of the windings would be 3-5 volts, but doesn't need much current (to activate a relay). But then I also want at-least one winding with only up to 1.5 volts, but very high current. The primary side would be connected to 100-120v 60hz North American mains power.
I don't think I could get a premade transformer that would work great for this project. But then, getting the parts together and building one from scratch appears to be quite complicated; Finding somewhere to buy the core and determining if it's good for 60hz AC, and making a primary winding that wouldn't short-out the AC power in my house.
It would be great if there was anyone selling unfinished transformers built for North American AC power, but that doesn't come with any secondary windings. I want to custom make the secondary windings, but I'm not paying for a pre-built custom transformer. I would prefer a toroid core (they're more efficient, aren't they?), but it's no big deal.
I don't think I could get a premade transformer that would work great for this project. But then, getting the parts together and building one from scratch appears to be quite complicated; Finding somewhere to buy the core and determining if it's good for 60hz AC, and making a primary winding that wouldn't short-out the AC power in my house.
It would be great if there was anyone selling unfinished transformers built for North American AC power, but that doesn't come with any secondary windings. I want to custom make the secondary windings, but I'm not paying for a pre-built custom transformer. I would prefer a toroid core (they're more efficient, aren't they?), but it's no big deal.