All posts by: Auw Jimmy

Aikido PreAmp Upgrade: IEC, Resistor, RCA, Hook-Up Wiring

The upgrade not yet ended. I still have something to finalize my Aikido PreAmp. I go to upgrade some section in order to make it firms before fitting it on...... Read More

Aikido PreAmp Upgrade: Electra-Print Custom Choke 30H / 75mA

Not just Lundahl here, I also ordered custom choke from Jack/Electra-Print. I contacted Jack and asked him to create a Choke, with requirement to be placed in Input position. He...... Read More

Old AD1865N and New AD1865N-K

AD1865 was build from some different factory around the world. Some may have from Malaysia, some from Philippines, some maybe from anywhere around the world. I collected some old AD1865N,...... Read More

Aikido PreAmp Upgrade: Lundahl LL1673 / 20H / 100mA / 60 Ohm DCR

I’m ongoing to rebuild my Aikido Preamp which has been suspended for quite long time. The target is simple: a complete wood chassis and some upgraded parts then we are...... Read More

I2S to AD1865 LSBJ Converter

Finally, I finish assembling my AD1865 PCB which converts standard I2S to AD1865 LSBJ format. This idea comes from pavouk, which provides the schematic then later I follow to design...... Read More

Human-Based Winding Machine

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...... Read More

Measuring DIY Choke with L/C Meter

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...... Read More

Raytheon 5842WA

Manage to secure some… Probably needed on  my “someday” 2A3 project… πŸ˜‰... Read More

[Video] High Power Triode Tube Amplifier Competition

Enjoy this! πŸ™‚ Available in a “quite high res”, 640×480 pixels. HD will take too long for me to process and upload πŸ˜‰... Read More

High Power Triode Tube Amplifier Competition

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...... Read More

TentLabs XO 11.289 MHz for QLS QA-550

If you have read my previous entry about QLS QA-550 SD Card Player, probably you still remember that I plan to upgrade the clock. Well, finally my TentLabs Low Jitter...... Read More

DIY Power Inductor

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...... Read More