Me and my Tan Theta Meter (Capacitor tester) - Page 3

Mooly · 17th October 2008, 06:50 AM

Hi Pheonix and Lumba,
Lumba -- 1000 bucks, cheap at half the price

Why did I build it ? Because it was such an unusual and original bit of thinking. I was interested

I used to work a lot on repairing SMPS and electroylitic caps are the number one cause of trouble.
As to audio I prefer if possible not to use electroylitics, in fact my current amp has only two in the audio path. Rail decoupling is a different matter. Low ESR ( low tan theta ? ) and long life are everything.
I will be honest Lumba, I can't say I have ever sat down and done listening tests on individual components (capacitors/resistors) in specific locations in an audio component.
That subtleties exist in audio I am in no doubt and, it was dissatisfaction with amplifier designs I had encountered that led me to design and develop my Mosfet integrated amp. Quite why it is so good sonically I still can not fully explain. As you say, it is something that can not be measured.

TheGimp · 19th October 2011, 02:56 PM

Just ran across this thread, and as geocities is gone, all the links are dead.

I did find a series of 6 articles here:

DIYCore.com - Home

I'm still looking for the original, and possibly PWB masks.

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17th October 2008, 06:50 AM	#21
Mooly diyAudio Moderator Join Date: Sep 2007	Hi Pheonix and Lumba, Lumba -- 1000 bucks, cheap at half the price Why did I build it ? Because it was such an unusual and original bit of thinking. I was interested I used to work a lot on repairing SMPS and electroylitic caps are the number one cause of trouble. As to audio I prefer if possible not to use electroylitics, in fact my current amp has only two in the audio path. Rail decoupling is a different matter. Low ESR ( low tan theta ? ) and long life are everything. I will be honest Lumba, I can't say I have ever sat down and done listening tests on individual components (capacitors/resistors) in specific locations in an audio component. That subtleties exist in audio I am in no doubt and, it was dissatisfaction with amplifier designs I had encountered that led me to design and develop my Mosfet integrated amp. Quite why it is so good sonically I still can not fully explain. As you say, it is something that can not be measured.

19th October 2011, 02:56 PM	#22
TheGimp diyAudio Member Join Date: Aug 2009 Location: Johnson City, TN	Just ran across this thread, and as geocities is gone, all the links are dead. I did find a series of 6 articles here: DIYCore.com - Home I'm still looking for the original, and possibly PWB masks.