Elna Silmic ARS Vs. Original Big Silmic - Personal Impression

The first production of the original Elna Silmic capacitor is offer a giant size diameter. When I compare them with the same value with others capacitors, it is just like elephant and ant. Look at this 1 uF value Elna Silmic! I have ultra cheap 1000 uF with almost the same size like this one. This project is an update of the half-gain headphone amp which is describe here

Half Gain Headphone Amplifier Project

This is an experimental headphone amp using dual op-amp IC. The goal is for better design of headphone amp compares to the Cmoy amp. I am dig out any possibility to improve the typical headphone amp like RA1 clone, Cmoy LME, or tiny Cmoy amp like this and this. And here is the final layout, I named it the half gain amp. The IC that I use in this project is AD823 from Analog Device.

SCPH-1002 Capacitor Capacitance Upgrade

Welcome to the year 2016. I have a lot of time during this holiday and my itchy hands ask me to doing something with the power supply of Sony Playstation SCPH-1002. This is my following upgrade which previously I had replace the caps with the better ESR rating.