suddenly the TD 100 II cost 30 euros :(

Hi! Can you help to decide between  the TD100 and the TD100 II?   They cost both 15 euros.   The reviews on the TD100 are positive and the TD100 II are new (?) so I didnt find much about them.     Thynk you

Thank you! Now it works! But I'm not very impressed by the sound quality. ok it's the first test on the x-fi soundcard and my hd 595 cans. no screwing bass

I'll try to upload some pictures. I can't find any wiring mistakes Could you please measure the voltage on C1 or C2, what values do you have (with nothing plugged tio the cmoy)?

Ok, I built a cmoy on a stripboard,. but mine does not work But as C1/C2 I bought a 0.1 µF polypropylene film cap (LINK)as seen at tangentsoft's cmoy site. The problem is that I don't measure any voltage on C1/C2.

Hi, nice tutorial! Is it ok to use a 4,7K resistor for the led? Thank you

The point is that in the Sennheiser parts are much more expensive in Germany then in other countries. E.g. the needed driver unit: germany 36 Euros, spain 19 Euros.

Poor student

Hey guys, the right driver unit of my HD 595 doesn't do it anymore, so I need a new one. Maybe you can give me an advice where to buy (as cheap as possible) a right driver unit for the HD 595 Cans?? (btw: I live in Germany) Thank you