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Old 17th February 2013, 06:13 PM   #231
Benedetto is offline Benedetto  Germany
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Was our discussion on Frickelfest light in any way enlightening ?
Yes !
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Old 17th February 2013, 06:20 PM   #232
Joachim Gerhard is offline Joachim Gerhard  Germany
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You should change your profession. The world lost a great price boxer.
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Old 17th February 2013, 06:26 PM   #233
FdW is offline FdW  Netherlands
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Paradise Phono Preregulator
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Originally Posted by Joachim Gerhard View Post
Was our discussion on Frickelfest light in any way enlightening ?
Yes, it helped; it made me take a step back and made me take a different viewpoint. I still need to decide a operating mode, is it CFB or VFB, i'm still not sure. The miller caps are gone; all frequency limiting capacitors are gone, except those on the input (input signal bandwidth limiting). No compensation, of any kind in the global feedback, or in the amplification loop. No Vas just 2 stages. I think this is a special puppy. But I should not say too much, otherwise people will start asking for schema’s and such (and right they are), first I will present the amplifier to a larger audience, and when (and only when) it gets favorable auditions it will be published but this will take time (in my tempo, and with the amount of time I have available, I would not hold my breath).

P.s. just one small capacitor, local feedback, on the opamp.
P.s. The amplifier is running at an gain of 5x (I would say very near unity gain).

Last edited by FdW; 17th February 2013 at 06:30 PM.
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Old 17th February 2013, 06:28 PM   #234
FdW is offline FdW  Netherlands
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Yes !
Your's(talk) too Dude
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Old 17th February 2013, 06:28 PM   #235
Benedetto is offline Benedetto  Germany
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first I will present the amplifier to a larger audience
FF2013 ?!
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Old 17th February 2013, 06:37 PM   #236
Joachim Gerhard is offline Joachim Gerhard  Germany
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The complete open loop gain looked like CFB to me. Of cause there is the more or less conventional Opamp input stage that is VFB by any means.
Anyway, what works works and what sounds good is good.
Time to visit you.
I have a very fine Fino Dry Sherry.
Yes i promisssed a Bordeaux because you won the low noise CCS competion.
I still owe you some pennies for an earlier BJT thing. I forgot the details.
My schedule is messed up big time.

Last edited by Joachim Gerhard; 17th February 2013 at 06:39 PM.
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Old 17th February 2013, 06:46 PM   #237
FdW is offline FdW  Netherlands
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Quote:
Originally Posted by Joachim Gerhard View Post
The complete open loop gain looked like CFB to me. Of cause there is the more or less conventional Opamp input stage that is VFB by any means.
Anyway, what works works and what sounds good is good.
Time to visit you.
I have a very fine Fino Dry Sherry.
Yes i promisssed a Bordeaux because you won the low noise CCS competion.
I still owe you some pennies for an earlier BJT thing. I forgot the details.
My schedule is messed up big time.
Let me first build the 2nd channel so we have a stereo pair, I'l keep you informed and yes you are welcome any day any time
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Old 17th February 2013, 06:47 PM   #238
FdW is offline FdW  Netherlands
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FF2013 ?!
Yes!
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Old 17th February 2013, 07:50 PM   #239
Joachim Gerhard is offline Joachim Gerhard  Germany
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cool, power with passion...
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Old 18th February 2013, 08:10 AM   #240
natohavoc is offline natohavoc  Germany
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Hi,

as the german AAA Forum also starts a GroupBuy for the Paradise R3 boards i wanted to ask about the status of the GB for the prereg.
I guess some of the guys from germany are also interested in getting a PCB for the prereg and therefore i want to point them directly to this GB to jump in if they want.
Is there any current schedule or shall i better not ask ?

Cheers,
Walter
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