Design & simulate in the clouds
https://www.electronics-lab.com/design-simulate-in-the-clouds/
by Michael Dunn @ edn.com: It was a few years ago that I first heard of a free site where you could draw and simulate designs. “What’s the point?” I thought. But, the idea is taking off. Was I wrong? I questioned the usefulness of this cloud concept because there had already long existed good, […]
Supercap energy density rivals batteries
https://www.electronics-lab.com/supercap-energy-density-rivals-batteries/
by Martin Cooke @ elektormagazine.com: A novel design of supercapacitor using a hybrid silica sol-gel material and self-assembled monolayers of a common fatty acid has been developed by researchers working at the Georgia Institute of Technology. The device is said to provide an electrical energy storage capacity rivaling certain batteries, with both a high energy density […]
Teardown, Repair & Analysis of a Rohde & Schwarz FSH3 3.0GHz Portable Spectrum Analyzer
https://www.electronics-lab.com/teardown-repair-analysis-of-a-rohde-schwarz-fsh3-3-0ghz-portable-spectrum-analyzer/
In this episode Shahriar examines a faulty R&S FSH3 100kHz – 3.0GHz Portable Spectrum Analyzer. This exceptionally dirty unit does not power on and is missing a power supply and battery. After verifying the correct operation of the battery charger circuit and keypad the problem is traces to a damaged SOT-23-6 MOSFET device which is […]
EEVblog #777 – Keithley 177 Microvolt DMM Repair
https://www.electronics-lab.com/eevblog-777-keithley-177-microvolt-dmm-repair/
Come on a ride as Dave repairs an intermittent Keithley 177 Microvolt DMM, garden paths and all. EEVblog #777 – Keithley 177 Microvolt DMM Repair – [Link]
Visualizing RF Standing Waves on Transmission Lines
https://www.electronics-lab.com/visualizing-rf-standing-waves-on-transmission-lines/
This video illustrates how RF (radio frequency) standing waves are created in transmission lines – through the addition of the forward (transmitted) wave and the reflected wave that results from improperly terminating the line or matching the load or antenna to the transmission line impedance. I have done several videos that relate to transmission lines, […]
Arduino DDS AD9850 Antenna Analyzer
https://www.electronics-lab.com/arduino-dds-ad9850-antenna-analyzer/
This is a no frills DIY Analyzer intended for frequencies ranging from 1.6 to 30 Mhz. This simple Antenna Analyzer could be a nice project for anyone just getting started in setting up a station on the HF bands. Arduino DDS AD9850 Antenna Analyzer – [Link]
WiFi smoke detector
https://www.electronics-lab.com/wifi-smoke-detector/
by Proto G @ instructables.com: This is a simple WiFI Smoke Detector that texts me when it senses smoke. I made this for my battery storage area in case of a lithium polymer fire. I still have all of my regular smoke detectors installed and I don’t suggest relying only on this, but rather as […]
Build a Motion Control Rig for Time-Lapse Photography
https://www.electronics-lab.com/build-a-motion-control-rig-for-time-lapse-photography/
by Tyler Winegarner and Chris Bordeleau @ makezine.com: If you dig around in your camera’s settings long enough, you’re almost assured to find that it has a mode to create time-lapse videos — those magical, time compressing movies that can turn any hillside or street corner into a lightning-paced dreamscape. Time-lapse videos by themselves are easy […]
WXR3031 rework station will replace you three devices
https://www.electronics-lab.com/wxr3031-rework-station-will-replace-you-three-devices/
Soldering, deslodering, hot-air works but also a record of your work in a PC – this is the Weller WXR 3031. Good soldering station is usually a fundament of a workplace. Desoldering station is usually a necessity if you work in development or service. And a hot-air station? – this one is becoming a must […]
Terahertz Optical Transistors Beat Silicon
https://www.electronics-lab.com/terahertz-optical-transistors-beat-silicon/
by R. Colin Johnson @ eetimes.com: PORTLAND, Ore.–Purdue University researchers have demonstrated a CMOS-compatible all-optical transistor capable of 4THz speeds, potentially over a 1000 times faster than silicon transistors. Nano-photonic transistors processed at low-temperatures can be fabricated atop complementary metal oxide semiconductors (CMOS) to boost switching time by ~5,000-times less than 300 femtoseconds (fs) or almost […]