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Old 16th August 2012, 11:01 PM   #6831
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I ordered a new LCR meter :
PeakTech® 2170 - PeakTech® - Spitzentechnologie, die überzeugt
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Old 17th August 2012, 01:08 AM   #6832
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Audible Color - Audio Visual Instrument by Hideaki Matsui & Momo Miyazaki Yanko Design
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Old 17th August 2012, 06:08 AM   #6833
FdW is offline FdW  Netherlands
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You know that i like buffers. Here is an distortion canceling design by our Dimitry :JFET Follower Amplifier Cancels Distortion
Looks very nice, I will study that, thanks for the link.
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Old 17th August 2012, 06:10 AM   #6834
FdW is offline FdW  Netherlands
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And I did order
Rigol DS2102 DSO !!Special offer!!
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Old 17th August 2012, 07:53 AM   #6835
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Do not use the triplicator
The danger is that one version of you the good one is sent far far away
The other even further.

So not a chance to get the 2 to merge and you get stuck with bad one spelling mistakes and all.
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Old 17th August 2012, 07:54 AM   #6836
hesener is offline hesener  Germany
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Almost finished stuffing the second board Just waiting for some micas for the power transistors.

Now I am in trouble with the riaa caps... my sourcing went wrong and bought amtrans caps from hificollective... too much variation... need to use big caps I have in stock (REL-CAP 15n) so I will use an external riaa after all.

To connect the external riaa, is it sufficient to connect it to the indicated place in the board or do I need to do some shunts ?
Hi, you can just connect to the place indicated on the board. Important: NO external ground connection, please just connect there and nowhere else. You may want to shield the circuit (depending on how far away you place it) and return the shield to the input ground of the amplifier.
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Old 17th August 2012, 08:01 AM   #6837
hesener is offline hesener  Germany
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Originally Posted by Joachim Gerhard View Post
You know that i like buffers. Here is an distortion canceling design by our Dimitry :JFET Follower Amplifier Cancels Distortion
Beautiful ;-)
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Old 17th August 2012, 08:21 AM   #6838
RCruz is offline RCruz  Switzerland
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Hi, you can just connect to the place indicated on the board. Important: NO external ground connection, please just connect there and nowhere else. You may want to shield the circuit (depending on how far away you place it) and return the shield to the input ground of the amplifier.
Thank you

It will be a small board just over the existing space.
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Old 17th August 2012, 08:22 AM   #6839
RCruz is offline RCruz  Switzerland
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I believe optical cables eqiped systems use light amplification to retreive info right ?
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Old 17th August 2012, 11:59 AM   #6840
hesener is offline hesener  Germany
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Thank you

It will be a small board just over the existing space.
That should work like a charm - don't know why but I was envisioning something like this:
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