Casio fx-61F Electronic Formula 27 Calculator

My old trusty Casio fx-61F “Electric formula 27”¬†calculator is still going strong and gets regular use. It was bought in a sale from Maplin Electronics UK, some time in the 90s from a bargain bin as I recall.¬†Why is it so special? Its a calculator specifically designed for electrical and electronic engineering. I don’t know Read more about Casio fx-61F Electronic Formula 27 Calculator[…]

Ticket To My Heart – Admit One

With Valentine’s Day approaching I thought I would share this design for a custom gift which I made. It’s a Printed Circuit Board (PCB) in the guise of a cinema ticket inscribed with the words Ticket to my heart, admit one. I had versions produced at elecrow and at PCBs.io, both of whom produced fine Read more about Ticket To My Heart – Admit One[…]