Posts filed under: DIY Audio

Some Vintage Meters

I manage to secure some old vintage meters. One is for DC Voltage (up to 300V, exactly what I need for my pre-amp). While the other is mA meter (up to 30mA, another luck for my pre-amp). I’m thinking of...
Continue Reading →

Am I Seeing (Smelling?) My Gold Burned?

When I arrived back home at night and cleaned up my equipment, I noticed that my solder tip has “golden” color appearance. Well, I have been on this solder-toy-world for over 15 years, but never saw my solder tip showed...
Continue Reading →

Mundorf M-Solder Supreme Silver/Gold

I also got chance to test the Mundorf M-Solder Supreme Silver/Gold. This is one of the finest solder on the market. Currently, I use WBT for most of my main project. But the chance to try the M-Solder shouldn’t be...
Continue Reading →

Custom Made Power Transformer for My Pre-Amp

I ordered custom made transformer to replace my old Aikido Pre-Amp transformer. Before, I rarely ordered a “finished” transformer (but prefer doing DIY one with my colleague). But now I’m thinking to try a “proven good” transformer (and considering doing...
Continue Reading →

Pre-Amp #26 Parafeed – Tweaked with Jensen Copper Foil Paper Tube

I visited my friend’s home few days ago. We planned to tweak his #26 Pre-Amp (with Parafeed design). His Pre-Amp was a high quality pre-amp, in terms of parts and design. As you can see below, the high voltage section...
Continue Reading →

The Journey Continues…

It’s a cool weekend, we are entering rainy months. I continue soldering my Ultimate Power Supply. Today, I solder 8 pcs of MUR860 and 70 pcs of Black Gate F Series. Done in 3 hours, not bad huh....
Continue Reading →

“Ultimate” Power Supply is Getting Near

Some of you have emailed me asking to finish the Gainclone – Black Gate Power Supply project, and well, I’m about to complete it with some modification. Here is the “sneak-peeks” 😉 The rectification section is made dual, total 8...
Continue Reading →

Mini Regulator Testing

I’m the middle of laziness… Actually I want to finish my Gainclone LM1875 project, but it will consume a lot of my brainpower 😉 But I don’t want to waste this weekend doing nothing. So I just test my Mini...
Continue Reading →

Am I Losing My Math?

I have made RGN/B4/B5 to Octal Converter few weeks ago. Actually, the converter was made for 1A RGN Rectifier (because of the resistor drop value). I put 2 x 0.5 Ohm to drop 1V from 5V to 4V. With 1V...
Continue Reading →

Jensen “Classic” Pure Copper Foil Aluminium Tube as Power Supply Bypass

Still remember my other “stupidity” here? After several hours of investigation, I finally decide that the Jensen Copper Foil Paper Tube is not a good capacitor for bypassing purpose. The music will lose most of its detail. YMMV, this is...
Continue Reading →

Slowing Down the Tone…

I do love the improvement after I finish the VCap TFTF Capacitor Mods on my Aikido Power Supply. The staging is awesome. I could “see” not only a center point, but also a little bit left/right, even more left/right, left/right...
Continue Reading →

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 capacitors will store some amount of electricity after your system...
Continue Reading →