A friend recently sent me an email noting that the classic 2N3904 bipolar transistor was now 60 years old. Since its “birth” ...

There’s a mystique among both audiophiles and musicians about vacuum technology, thus having a tube amp still carries a ... it’s not for audiophiles. The circuit is a pretty conventional ...

That’s because the P-100C features not one but four identical and discrete LIFES-centred amplifier circuits – two per channel – to allow it to operate in four different modes. And back to the press ...

A DIY The Wrench maker has built a smart desk dustbin with an automatic iris-style lid, adding both functionality and a unique touch to a workspace. After some adjustments, the final design was ...

Fusion Chime Vision is an advanced open-source doorbell system built around the ESP32 microcontroller platform. It replaces a conventional chime with an interactive device that displays custom ...