When I’m in the shop I usually like jamming to my music but the tunes don’t sound good over the buzz of saws, routers and vacuums. I do what I can to keep the noise down for my neighbors so turning the volume up to eleven is out of the question. Besides being rude to…
“Toothpick” Audio CW Filter Kit Variable bandpass helps peak desired signal Audio amplifier will drive speaker to room filling volume In / out switch Use with phones or speaker Will work with other qrp rigs and older receivers Measured peak bandpass 700 to 1000 Hertz Introduction: The “toothpick” is a simple variable bandpass audio filter…
Arduino is an open-source electronics prototyping platform based on flexible, easy-to-use hardware and software. It’s intended for artists, designers, hobbyists and anyone interested in creating interactive objects or environments. Arduino can sense the environment by receiving input from a variety of sensors and can affect its surroundings by controlling lights, motors, and other actuators. The…
DIY Project : Elekit TU-8200 Tube Amplifier Kit (SE 6L6). Over the past several years I have been enjoying an Elekit TU-879S Stereo Tube Amplifier Kit paired up along side of Fostex FE206E high sensitivity speaker drivers in Dallas rear-loaded horn enclosures. I put a number of hours on the Elekit TU-879S, enough to fully…
STAMPFL – Stand Alone SDRWatch this video on YouTube LSB, USB, CW, 3 bis 21 MHz durchgehend. DDS AD9851 180MHz CLK Mixer FST3253. Spektrum ATMEGA 8 2Stück 12Bit ADC. Photo by heinzstampfl.ch Photo by heinzstampfl.ch Photo by heinzstampfl.ch www.heinzstampfl.ch