Posts filed under: Personal

Digital Volume Control

I’m thinking of a digital volume control, instead of passive one (with potentiometer or stepped attenuator). Hmm… Searching around the net, I found some IC from Maxim. I grabbed some (with different packaging and functionality). Now I need to think...
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What If…

Still remember my “silly” project, this one and this one? I think I will make it even more “sillier” than before. Watch out. First, I’m thinking of testing my new Mundorf Silver/Gold/Oil on my Gainclone. This top of the line...
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Sunday Session at PJ’s House

Since tomorrow is holiday, so I take this Sunday as a “long holiday”. So I pay a visit to my good friend, Mr. Paul a.k.a PJ. I also bring my DIY Speaker and my DIY Aikido. I don’t remember the...
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Extra Ammunitions for Gainclone Project

I’m thinking of… a full Black Gate Power Supply 😉 Well, it’s not a dream since I have enough Black Gate F Series stock on hand. One value only, 680uF/65V. I need to use at least 10 pcs each (symmetrical power...
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Inside (Disassembly) O2 Exec

I have some problem which force me to disassembly my O2 Exec. So here is some pictures. The whole unit inside of my O2 Exec....
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Aikido High Voltage/B+ PSU Mod

From my previous Aikido project, I’m still thinking of improvement of my B+ PSU. Well, I still hear a small hum. There are several possibilities to be tried, but I’m thinking of improving my B+ PSU first. If it fails,...
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My Knight 600 Tube Tester

I went to my friend’s house to test my “old” Knight 600 Tube Tester. It was old, I got from eBay. I didn’t have step down transformer on hand, so I need to try it elsewhere. It was a nice...
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Gainclone Challenge: Picking My Agents

A Gainclone challenge? Why not? Solid state? Why? Why? Why? Why? Why? Wise man says ask “Why” five times. But I think I will end up with same answer 😉 Sorry! Just consider this as a small killing time, boredom...
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My Aikido on the Box

Finally, I put my Aikido Pre Amp on the chassis. Well, was a tough job since normally I didn’t do such thing (e.g. putting my DIY work on “little bit” neat chassis). I separated inside the chassis into 3 chambers....
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My Aikido Preamp with Standard Components

Well, I have one week holiday and I’m almost dead because of doing nothing. Since I have a pair of Aikido 9-pin Preamp PCB, why don’t I build one? The main concern of this project is simplicity and cheap price....
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Basic Electricity Ground Testing

Well, I have been involved in a discussion in a local forum and surprisingly, many people don’t understand about grounding. It will take a long paper to discuss about grounding and you can find on Google. I just will write...
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A Shoot of My Aikido Preamp

Just take a shoot of my Aikido Preamp (6N1P, 6N6P, and 5U4C/5Z4 rectifier). Will upload the details later. Enjoy this cute pics. Beautiful, isn’t it?...
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