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Espruino is a JavaScript interpreter for low-power Microcontrollers. This site is both a support community for Espruino and a place to share what you are working on.
@DrAzzy
The MOSFETs mentioned in the tutorial ( IRF3708PBF ) are available from digikey and mouser, and probably any similar electronics supplier. Not available from "hobby vendors" and ebay.
If you're able to do SMD work, there are hundreds of amazing transistors with specs that boggle the mind. Through-hole options are extremely limited if you need gate voltage of less than 4.5v, unfortunately.
To address this shortage of through-hole MOSFETs that work with low gate voltages, I sell low-voltage logic level MOSFETs mounted on breakout boards to make SMD MOSFETs usable to people who prefer not to work with SMD parts - (4-channel ones big and bigger, and SOT-23 ones for ligher duty by the six-pack - prices start at $3/6pk for the SOT-23, and $12/14 for the 4-channel ones) . Some models are available with several different types of FETs mounted on them, at different prices (see product page)