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Old 10th January 2013, 06:01 PM   #981
6L6 is offline 6L6  United States
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One 48 volt secondary with center-tap will work.
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Old 10th January 2013, 06:02 PM   #982
henryve is offline henryve  South Africa
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I assume that the sign-up sheet for the Fairchild MOSFETs are still active. After adding my name, what would I need to do. Pay buzz via Paypal?
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Old 10th January 2013, 06:09 PM   #983
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Originally Posted by 6L6 View Post
One 48 volt secondary with center-tap will work.
yes. that will work
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Old 10th January 2013, 06:15 PM   #984
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Originally Posted by AudioSan View Post
what?
and one 24VAC secondary??? you need 2x24VAC
This source is not symmetrical, have + and - there is no point 0.

Where I turn on 2x24VAC in PSU...

I must be confused or to do evil thing!!!


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Last edited by Blink_PT; 10th January 2013 at 06:25 PM.
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Old 10th January 2013, 06:38 PM   #985
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here is the 0 point.
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Old 10th January 2013, 06:49 PM   #986
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Originally Posted by AudioSan View Post
here is the 0 point.
You are absolutely right, I apologize for my inexcusable stupidity, and I did an F5, brbrbrbrb. Rectification common to 2 channels completely confused me.brbrbrbr
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Old 10th January 2013, 07:16 PM   #987
a.wayne is offline a.wayne  United States
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some nice lights allways make the sound good
Have you built a 4 Pr version yet ..... ?
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Old 10th January 2013, 07:18 PM   #988
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hi AudioSan,
I changed R 5,6 to 2.2K at 25 volt rails on F5v2 turbo yields 10 volts at Q5 and 6 emitters,just right for cascode for input fet's. At 32 volt rails about 18 v,still good value!
Thanks,
NS
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Old 10th January 2013, 07:20 PM   #989
Renron is offline Renron  United States
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Quote:
Originally Posted by Blink_PT View Post
You are absolutely right, I apologize for my inexcusable stupidity, and I did an F5, brbrbrbrb. Rectification common to 2 channels completely confused me.brbrbrbr
one channel, P&N rails
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Old 10th January 2013, 07:22 PM   #990
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Originally Posted by noSmoking View Post
hi AudioSan,
I changed R 5,6 to 2.2K at 25 volt rails on F5v2 turbo yields 10 volts at Q5 and 6 emitters,just right for cascode for input fet's. At 32 volt rails about 18 v,still good value!
Thanks,
NS
May be misreading, but V across R5 and R6 is the gate voltage your fets will see.
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