Posts filed under: DIY Audio

Bleeder Resistor: Who the Hell Are You?

To simplify the answer, Bleeder Resistor is used to “short” the positive and negative rail on your High Voltage (B+) circuit. The main reason is safety. Without Bleeder Resistor, your...... Read More

“Seductive” Night with RGN and New Power Supply

It’s over midnight. After my previous mod on my Aikido Power Supply section here, it’s time to test it with RGN rectifier. I pick my Tefefunken RGN1054 Mesh Rectifier (before,...... Read More

Testing the Jensen 4-Pole Capacitor

It’s a weekend holiday and it’s time to scratch my laziness and doing some audio DIY mods. This time, I will try a capacitor from Jensen, the 4-Pole Electrolytic. What...... Read More

Resistors Upgrade on Aikido

I dig my parts bin and found some resistor values which I needed to upgrade my Aikido. I used three brands here, Riken RMG “Metal Film”, Shinkoh “Tantalum”, and Kiwame...... Read More

Jensen Pure Copper Foil Paper Tube as Power Supply Bypass

If before I picked Obbligato as last Power Supply (High Voltage) bypass capacitor, now I’m experimenting with Jensen Pure Copper Foil Paper Tube in this position. The result? Well, not...... Read More

VCap TFTF on Power Supply Test

Yes, you might call me crazy! A Teflon VCap TFTF on Power Supply section? If I need to make myself clear, this 0.47uF/600VDC VCap TFTF Teflon capacitor will cost you...... Read More

In Depth Session: Jensen Copper Foil Paper Tube vs Duelund CAST PIO

Still curious about the different between Jensen Copper Foil Paper Tube and Duelund CAST PIO, I held another session to benchmark both capacitors. You can read previous articles here and...... Read More

Another Aikido Pre-Amp Mods

Never ending tweaks and mods? Yes I think so. Actually, my Aikido Pre-Amp already sounds good. But as a DIY, I think the journey never ends. Tomorrow always comes with...... Read More

Extreme Capacitors Battle (2nd Session)

After you read this, perhaps you would expect a better system to test the capacitors. So today, I visit a friend, and test the capacitors on his system. We can...... Read More

Another Aikido Power Supply Mod

I just change my old “Aruki” Korean oil-can capacitor to ASC and Mundorf MCap Supreme. The configuration before is 60 uF and 40 uF Aruki Capacitor, now changed to 3.3...... Read More

Extreme Capacitors Battle (1st Session)

Just what I’ve promised before, finally today I do the most awaited Capacitors Battle. Actually the “real battle” will be done within next few days. Let’s say, this is as...... Read More

DIY Socket Converter: B4/B5 to Octal Socket

Still remember my Aikido project? Until now, I’m still using Octal socket (since most of my rectifiers are Octal based, like 5U4, GZ37, etc).  Few weeks ago, I was poisoned...... Read More