I got chance to try ASUS O!Play Air HDP-R3. Short words, it’s a digital storage player (you can use external HDD connected via USB or e-SATA or use the build-in...... Read More
I used to like “hook-type” probe used in oscilloscope , as this type is very convenient in testing small parts. You just hook the test clip and see the result...... Read More
Not completely done, but I could imagine the final appearance later. Enjoy! Only one last module left, the audio player as source. And off course, the speakers.... Read More
In the middle of the night, after finishing my tube rectifier dual socket modification, I prepare some tube rectifier to test the new socket. I think it’s gonna be nice...... Read More
My rectifier socket got problem, accidentally, the one of the pin was broken yesterday. So I fill this weekend to repair it. Since I used to use Octal and B4...... Read More
Today, I design the power supply module for my tiny amplifier project (check here and here for detail). The power supply are divided into three modules. One is for the...... Read More
My tiny newborn amp will not be alone. I will add a low voltage tube buffer as a nice companion. I just finish the module today. Powered by Russian 6N1P...... Read More
Ok, my newborn saw the world for the first time about 5 days ago, and I haven’t finished his first gift 😉 The main idea is to create an active...... Read More
I’m about to finalize this sound card mod. The output now is taken directly from the WM8770IFT, coupled with Jensen Copper Foil Paper Tube Capacitor (before it was Mundorf Silver/Gold/Oil)....... Read More
I’m thinking to create a first gift for my newborn (ooopsss… he is not yet here, just about to). A small MP3 Player with tiny amplifier to drive a small...... Read More
Some of the readers mailed to me and asked, why do I digitalize my collections? The reason is as below. I found at least one of my CD has a...... Read More
After a disappointing thing happens this morning (later I will discuss), I decide to make a digital backup of almost all (at least my favorites) Audio CD collection. The best...... Read More