Testing and setting bias on Zv9

sts9fan · 23rd September 2008, 01:57 PM

Hi,
I am finishing up my first(non kit) and long over due diy project. I want to make sure everything is all set but am not 100% sure of what and where to test. Also could someone direct me to instructions on setting the bias?
Thanks
Kris

Nelson Pass · 23rd September 2008, 07:12 PM

Quote:

Originally posted by sts9fan
I am finishing up my first(non kit) and long over due diy project. I want to make sure everything is all set but am not 100% sure of what and where to test. Also could someone direct me to instructions on setting the bias?

The bias self-sets. All you need to do is adjust the pot so that the DC
presented to the output capacitor is the value called out in the article.

sts9fan · 23rd September 2008, 07:45 PM

So I just need to adjust the pot so the voltage on the drain of Q2 is 1/2 ofthe drain of Q3.

thanks

23rd September 2008, 01:57 PM	#1
sts9fan diyAudio Member Join Date: Apr 2006 Location: MA	Testing and setting bias on Zv9 Hi, I am finishing up my first(non kit) and long over due diy project. I want to make sure everything is all set but am not 100% sure of what and where to test. Also could someone direct me to instructions on setting the bias? Thanks Kris

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23rd September 2008, 07:45 PM	#3
sts9fan diyAudio Member Join Date: Apr 2006 Location: MA	So I just need to adjust the pot so the voltage on the drain of Q2 is 1/2 ofthe drain of Q3. thanks

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