Posts filed under: DIY Audio

I need to build small chokes for my AD1865 DAC. After some calculation, it comes to specific wire length, turns, and layers. In order to maintain the stiffness of the winding, I have to use what do I have now...
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My cheap L/C Meter has arrived. With this new tool, I can play and explore more, especially things related with inductance, like Choke or Inductor. Although this is not the most accurate meter, but should be enough for typical daily...
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Enjoy this! 🙂 Available in a “quite high res”, 640×480 pixels. HD will take too long for me to process and upload 😉...
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Last week, we have a nice blind test (or better we call as blind scoring) for high power triode Single Ended amplifier. The high power triode means a high voltage one. We are talking about at least 800 VDC voltage,...
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I need some small inductor for my DAC power supply section, but finding appropriate one is not an easy job. I have found several ready to use inductor, but whether the construction or the inductance, doesn’t match my needs. So...
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There are not many options to go with NOS DAC. One is TDA 1541, and the other is AD1865. Some says, the TDA is better (at least the S1), meanwhile some other say the AD1865 is better (perhaps because it’s...
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I dig some of my collection and find some AZ1 tubes. Basically, I have several tubes, but short word, they are separated into 3 brands, Philips Miniwatt AZ1, Valvo AZ1, and Telefunken AZ1. I don’t use P-Socket on my system,...
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I would rather call this as “beauty in the dark”… No longer perfect in terms of construction, slightly off-center for the mesh and triangle, since probably over 70 years old tube. But… It’s still a nice collectible item. Since the...
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When I clean up some of my collections today, I accidentally find some tubes which I rarely (or probably never) use. Actually I have some bad habits, collecting “junks”. Not really “junks” in terms of “garbage”, but “junks” for “thing...
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Indonesia High End Audio Club or in short, IHEAC, held an blind test (or maybe I would prefer to call them as blind scoring) for tube pre-amp. The session was  started on the afternoon, around 11am. Some equipment used shown...
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We’ll see between those two, who can serve the best supply for the DAC....
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Coming soon… 😉 Thinking about independent shunt regulator for each rail, precision passive I/V, and tube output....
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