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Chip Amps Amplifiers based on integrated circuits

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Old 15th November 2005, 01:59 PM   #21
diyAudio Member
Join Date: Mar 2005
Location: England
Default Re: is the same project?

Originally posted by plovati
of this one?
I think this is the authors official web page for that preamp.

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Old 6th January 2006, 06:35 PM   #22
Lougous is offline Lougous  France
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Join Date: Mar 2005
Location: Alsace
Hi guys,

Very interesting
Is there any possibility to have a multichannel version of this wonderful preamp?? and how?

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Old 7th January 2006, 01:56 AM   #23
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High End Pre Group Design Invitation
hope this will answer your Q for multichannel application.
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Old 7th January 2006, 03:10 AM   #24
diyAudio Member
Join Date: Feb 2004
Location: Geilenkirchen, Germany
@ Lougous

What's so interesting about this Preamp...? It's just the standard application without any buffers...

Have alook at this:

A modular system with touch screen... OPA134 at the input and OPA134+BUF634 at the output...

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Old 19th July 2010, 08:59 PM   #25
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Join Date: Sep 2008
Location: MP
Originally Posted by bostjancek View Post
The PIC Micros were programmed with Willem programmer - but you could use also JDM programmer which is very simple for DIY. The code was writen in Pic Basic Pro language. The code is not complicated - I have corrected the code which I foud here on the forum because it was written for 16F84 PicMicro. The code for the input selector was also writen in PBP.

Here is the main code :

I am searching this project from long time.
I am not much famaliar with microcontrollers. So would you be kind enough to post the hex codes and schematics .

BTW does your circuit has provision to store the last volume level used.
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