http://www.diy-central.com/ Electronics, PCB, Audio, Recording, Studio - Build, Create, Hacks en-us DIY-Central.com Mon, 01 Jan 2007 23:35:38 GMT newtelligence dasBlog 1.9.6264.0 info@fivefish.net info@fivefish.net http://www.diy-central.com/Trackback.aspx?guid=52dfcd5d-b9b2-4180-b168-606f4c0020f8 http://www.diy-central.com/pingback.aspx http://www.diy-central.com/PermaLink,guid,52dfcd5d-b9b2-4180-b168-606f4c0020f8.aspx DIY-Central.com Administrator http://www.diy-central.com/PermaLink,guid,52dfcd5d-b9b2-4180-b168-606f4c0020f8.aspx http://www.diy-central.com/DIYBuildingTheGyrafSSLCompressor.aspx Mon, 01 Jan 2007 23:35:38 GMT <table align="right" border="0"> <tbody><tr><td> <script type="text/javascript"><!-- google_ad_client = "pub-6450503918861631"; google_ad_width = 336; google_ad_height = 280; google_ad_format = "336x280_as"; google_ad_type = "text"; //2006-11-30: HomeStudioGuide google_ad_channel = "9907688969"; google_color_border = "FFFFFF"; google_color_bg = "FFFFFF"; google_color_link = "0000FF"; google_color_text = "000000"; google_color_url = "000000"; //--></script> <script type="text/javascript" src="http://pagead2.googlesyndication.com/pagead/show_ads.js"> </script> </td></tr> </tbody></table> This is a repost of my SSL Build Thread. Thanks to Gyraf.dk for the schematic plans. <br><br>The compressor is a clone based from the SSL4044E desk (1985 era). The SSL mixbus is actually an integrated part of the desk's main quad fader and autofade system. Click here for <a href="http://www.gyraf.dk/gy_pd/ssl/ssl_sch.gif">schematics</a>.<br><br>There's been some <a href="http://homepage.mac.com/marten.thielges/gssl/calibration.html">mods</a> to the original schematics for use with THAT VCAs. This page contains adjustments to the resistor values. <br><br>I also did some mods on my unit. Mainly, adding transformers at the output. Originally, the unit uses opamps for balanced outs. I have some MCI 416 output trafos that I used for my SSL unit. <br><br>The PCB... <br><br><img src="http://www.homestudioguide.com/content/binary/sslpcb.jpg" border="0"><br> DIY;PCB;SSL Compressor