Posts filed under: DIY Audio

DIY Power Supply Cable with Fuse and Alligator Clips

I’m not quite sure if the title above is correct, but I just can’t figure out something better. Basically, when you are doing DIY, then you will play a lot in breadboard or something that’s not in proper or neat...
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Universal Tube Power Supply Unit Design Plan

As a DIY, I think it’s important to have a dedicated power supply module. I have tried several design, but finally got tired if I have to finalized the build into something complete. Not to mention that space might be...
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Burson Supreme Sound OpAmp 4th Generation First Impression [Continued]

My first impression was here which you can look around if you haven’t read that. Last time, I ordered 5 pcs of Burson Audio Discrete OpAmp for my ASUS Xonar Essence One. Unfortunately, I did a mistake. I needed 7...
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Indonesia Hi-End Audio Club IHEAC Show 2014

Last week, located at Hotel Menara Peninsula, Jakarta, Indonesia, Indonesia Hi-End Audio Club or IHEAC held a high end Audio Video show. This is the 3rd show held by IHEAC and frankly speaking, it has a lot improvement compared to...
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Testing J&K Audio Design Custom Power Transformer

Due to shortage of some materials, my custom¬†transformers were delayed a bit. I haven’t got chance to arrange the pickup yet, so I ask Ken to give a quick test of the unloaded voltage. I know the best scenario is...
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Burson Supreme Sound OpAmp 4th Generation First Impression

OpAmp. Well, what’s inside your mind when reading word “OpAmp”? A tiny chip with several pins? Could be. Actually, there are several ways to get the job done. First, we go with easy ‘fast food’ or chip based OpAmp. You...
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J&K Audio Design Custom Power Transformer

I have spent quite a lot of time to find a good transformer maker who can build something “beyond ordinary”. That means something standard (or a bit above standard) is no longer interest me. I spend hundreds of emails to...
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Repairing Broken Peerless/Tymphany P830985 Full Range Driver

I got this Tymphany driver from broken Bluetooth speaker. First, I don’t expect I would see anything special inside a broken Bluetooh speaker. But I’m wrong. The driver used is Tymphany (Peerless) P830985. I believe the name/numbering format is following...
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Another Comment of ‘No Name Capacitor’ from DHTRob.com

First, I need to say sorry because I haven’t updated this blog for quite some time. Crazy busy with my daily office life. I have some good stuff on hand, but unfortunately don’t have much time to take picture and...
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HP (Agilent) 8903B: Audio Analyzer / Distortion Meter

This is one of the measurement device that has been on my list for a while, it’s HP/Agilent 8903B distortion meter (well, Tektronix AA501 is also on my list). It’s a solid unit with combination of low distortion oscillator and...
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HP (Agilent) 5328A: Universal (Frequency) Counter

In order to have better view (and better understanding) of how stuff works, especially in audio, I need to have more testing equipments. Unfortunately, those are quite expensive for a person who is doing this as hobby – like me....
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Safe Battery for Your Measurement Device

It’s time to replace battery on some of my measurement device. And surprisingly, it’s not easy to find good (and safe) replacement. For some of you who never (I hope really-really never) got problem with battery, probably you will not...
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