Month: April 2006

DIY Magnetic card reader

DIY Magnetic card reader

Cheap DIY credit card reader project – “The reader mechanism shown was purchased from All Electronics for $1.50. The unit provides the magnetic head on a spring mechanism along with low level head signal amplifiers and data slicers. Three signal lines comming from the unit provide card presence, clock, and data. “ [via] – Link. […]

Orange juice battery

Orange juice battery

MAKE Flickr photo pool member Rob Cruickshank writes – “The students in my electronics workshop wanted to see a battery made out of food. The calculator is powered by the zinc-plated screws and pennies in the orange. If you try this, don’t eat the orange afterwards!…” – Link.