Posts filed under: DIY Audio

Long time no post. Quite a busy months. Let’s start with a simple one. All photos were taken with my Nokia Lumia 1020. I was too lazy to use my DSLR for this purpose ;-). During some ‘cleaning house’ session...
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This is quite common tube, 300B by Shuguang. Nothing really special, only white ceramic tube socket, gold plated pins, and carbonized nickel plate. Let’s see how interesting this tube when the filament is powered. The perforated design is interesting than...
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A bit tough later these days to find a good reclock module. Somehow, I was interested to try this one: TCXO Module from D/A Mental (a bit strange name, huh?). The specification is quite promising, like below: Frequency : 22.5792MHz...
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After first part here, I think it’s time to experiment more with this SPDIF Transformer. What could be worst than potting it into a custom enclosure? Nanana, I can’t even imagine… Below is the final result: The potted transformer vs...
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Scientific Conversion SPDIF Transformer is quite unique. The appearance is 8-pins SMD, but the footprint is nowhere on the 8-pins SMD one. I have tried BrownDog PCB to mount, but it just doesn’t fit (or I pick wrong PCB). But...
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It has been quite some time since my last article on this blog. Quite a busy life (but that busy life pays this hobby, anyway). I tried to spend sometime few days ago to disassembly QLS QA-660 and planned some...
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I have used several good brands of potentiometer. But once upon a time, I decided to stick with stepped attenuator. My first was DACT which using SMD resistor and configured in series. They were factory made, so just paid and...
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Living in such humid country, then corrosion is always around. I hate it, frankly speaking. But no choice 😉 I try to ignore such corrosion (and throw away my ‘perfectionist’ habit), but when it comes to my DACT Stepped Attenuator,...
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I bought this Duelund VSF Cast Ag (Silver) around 3 years ago. I think Duelund was not as popular as now at that time, but still this Ag (Silver) version was quite pricey that time (but now if I see...
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When the night comes, it’s a good time to listen some musics while summing up today’s work 😉 So here is the shoot of ASUS Xonar Essence One DAC section. It could be my final call for now. I use...
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It’s been quite some time since I play with small soldering job. Time to practice a bit more. On the same time, I have to solder my LME 49720HA to the PCB board converter. So, let’s heat up the hand...
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Finally it’s done, the modification of Asus Xonar Essence One (E1). Before we go to a final listening test, let’s enjoy some pictures first. As I have explained before, this is not the best design to mount the big Jensen...
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