How to build an amplifier in less than 2$?
Refik writes “Why do we need Amplifiers? How to build a simple one? LM 741 – You have some output source (for example an analog sensor) where the voltage is very low, just few mV (millivolts), and you would like to measure the output with your ADC (Analog to Digital converter) and with the results do some calculations with your MCU (Microcontroller) or some other device. The values the ADC gives you are all almost the same because its bit resolution is too small to show you any differences between the different states of the sensor.” Link.
Peter writes “Neutrik, the pro audio connector maker, was handing out samples of their new USB connector at NAMM. It’s screaming out to be be built into a DIY project, like a crazy audio USB patch bay for all these USB drums and keyboards and things that are proliferating.” 
More on the RFID zapping project “The RFID-Zapper is a gadget to deactivate (i.e. destroy) passive RFID-Tags permanently…Goals are a proof-of-concept and the construction of at least one functioning and appealing prototype, as well as a documentation of the project, so that everyone can build an own RFID-Zapper. Since the project found so much positive resonance, we probably are going to work on some other realizations of the concept, e.g. building an RFID-Zapper from scratch, without a single-use-camera.” [
DIY satellite of sorts…A Russian Orlan spacesuit with three batteries, a radio transmitter, and internal sensors to measure temperature and battery power – “One of the strangest satellites in the history of the space age is about to go into orbit. Launch date: Feb. 3rd. That’s when astronauts onboard the International Space Station (ISS) will hurl an empty spacesuit overboard. The spacesuit is the satellite — “SuitSat” for short.” [
Time to dust off the PSP, play all the applications you make or download from homebrew sites…“PSP Updates forum moderator and hacker guru Fanjita has completed his first release of a new loader for 2.01+ PSP’s called eLoader. While 2.60 is not currently supported, this is a major accomplishment in unleashing homebrew on all systems. This amazing feat shows how frightfully resourceful developers can be when put against certain system restraints. This leap has indisputably opened the door to homebrew for PSP gamers who play on newer firmware.” 
Remember