Texas Instruments announced plans for the Regency TR-1, the first transistor radio to be commercially sold, on October 18, 1954. The move was a major one in tech history that would help propel transistors into mainstream use and also give new definition to portable electronics. TI was producing germanium transistors at the time, but the […]
TI announces 1st transistor radio, October 18, 1954 Continue Reading
Ever wanted to visualize your brain activity in real-time? Move an object on a screen with your mind? This tutorial shows you how to make a recreational EEG beanie that turns brainwaves into light, using a microcontroller, LEDs and a special chip that processes brain activity. It also demonstrates how to use the hat to
Beanie Turns Brainwaves into Light Continue Reading
Abstract: A PIN photodiode, four low-noise op amps and a comparator are used to detect individual photons of gamma radiation. The schematic, design considerations and component selection are discussed. The circuit of Figure 1 includes a PIN photodiode that detects individual photons of gamma radiation. When a photon strikes a depletion region created by reverse bias
Gamma-Photon Radiation Detector Continue Reading
Colin Johnson @ nextgenlog.blogspot.com: Hybrid solar cells that harvest all of the suns energy, instead of just a few narrow bands, could transform the energy economies worldwide: R. Colin Johnson @EETimes For more detail: Hybrid Solar Cells Promise 95% Efficiency
Hybrid Solar Cells Promise 95% Efficiency Continue Reading
First ever affordable 5axis multi-fabricator that brings most advanced fabrication right to your desk: We’ve designed machine that combines multi- fabrication methods: 5axis milling being one of them. 5AXISMAKER is a machine versatile enough to fabricate most advanced design prototypes in readily available material while on your desktop right next to you. Being an alumni
5AXISMAKER: First ever affordable 5axis multi-fabricator Continue Reading
Researchers at Stanford University have created a fast-charging and long-lasting rechargeable battery that is inexpensive to produce, and which they claim could replace many of the lithium-ion and alkaline batteries powering our gadgets today. The prototype aluminum-ion battery is also safer, not bursting into flames as some of its lithium-ion brethren are wont to do.
USB connected TI TMS320F28027 based ZRLC Tweezers with Most Digital multi-meters measure Resistance and Capacitance and LC-meters can measure Inductance and Capacitance. Presented here is a ZRLC meter which can measure Resistance, Capacitance, Inductance and Complex Impedance. The hardware is built around a TMS320F28027 micro-controller an 8-port-analog-switch ADG714 from analog-devices and a Microchip rail-to-rail dual
USB Tweezers for ZRLC measurements Continue Reading
In this episode Shahriar reviews the new Keithley 2450 Source Measure Unit (SMU). This model, which is the successor to the widelyadopted Keithley 2400, offers performance improvements as well as a brand new interface platform with multi-point touch screen. The review demonstrated the instruments GUI, scripting capabilities through the TSP interface and various performance parameters.
Keithley 2450 Source Measure Unit (SMU) Review and Experiments Continue Reading
Dave tears down the new US$399 Rigol 4 channel 50MHz DS1054Z oscilloscope. How can they get such incredible value for the price? For more detail: EEVblog #674 – Rigol DS1054Z Teardown
EEVblog #674 – Rigol DS1054Z Teardown Continue Reading
F*watch is a fully open electronic watch project featuring an integrated GPS receiver. The development started at CERN as an after-work project to make a special present for a retiring colleague who likes hiking and timing. The full design (electronics, mechanics and software) is available under free licenses and the design is exclusively made with
F*watch – a fully open electronic watch Continue Reading
