Gyraf DIY main. DIY-page Welcome to the Gyraf Audio DIY-page.....
Please read this first!! The projects described on these pages are not commercial in any way. This means that we DO NOT sell PCB's, kits, or anything like that. It also means that any for-profit use of the information on these pages is strictly prohibited. Please DO NOT contact us regarding parts or info for the DIY-projects, as we don't sell anything related to these - they're kept strictly non-commercial. 20. Here's the link to the Prodigry-pro forums (AKA GroupDIY) - our meeting place and hangout for all things audio, electronic and DIY. Gyraf Do-It-Yourself Circuits This pages contain information about building your own professional audio equipment. Comments and corrections are more than welcome, but I can't promise to reply to all mail. Disclaimer: Notice that all information, schematics, layouts etc. are supplied "as is", and that we can in no way be held responsible for its acurateness, functionality or even safety.
Basic safety rules: META - The 1176 project. Building 1176 Mnats. Building the DIY Gyraf 1176LN Clone (With a Perspective from Australia) The UREI 1176 is a classic audio compressor designed by Bill Putnam et al. and first built in 1967.
It has a characteristic quality that remains popular to this day. While versions of the compressor are still commercially available, the adventurous will want to build their own. I have seen various sites on the internet showing how to build a clone of the UREI 1176 compressor, some better than others. It also uses an IC opamp for the meter driver stage rather than the bipolar transistors used in earlier versions.
Modifications However, I had a few problems with the Gyraf Revision 7 printed circuit board. BD139/140 in Modified Board Secondly, many people had reported the gain of the stock G1176 was inadequate and far below what the original was capable of producing. All this meant that the PCB would have to be redesigned although not too extensively. It seems to have been worth the effort. Parts Control Audio Pty Ltd Mr. 1176LN Calibration. Audio - DIY 1176. 1176 DIY-page Welcome to the Gyraf Audio DIY-1176-page..... 03.
August 2004 Gyraf Do-It-Yourself 1176LN rev#F This pages contain information about building your own version of the classic 1176 compressor. I will try to update this page reguarly if anyone shows interest in its topics. Disclaimer: Notice that all information, schematics, layouts etc. are supplied "as is", and that we can in no way be held responsible for its acurateness, functionality or even safety. Gyraf Audio shall not be responsible and disclaims all liability for any loss, liability, damage (whether direct or consequential) or expense of any nature whatsoever which may be suffered as a result of or which may be attributable, directly or indirectly, to the use of or reliance upon any information, links or service provided through this website. The G1176: A classic FET compressor.
This is an adaption of the original UREI 1176 LN rev#F to components and parts that is available (hopefully) everywhere. The Schematic:
1176 builds.