Sureshot Studio / UREI MOD-One Discrete Opamp

UREI is perhaps best known for pioneering several iconic compressors and limiters. Lesser known, however, is their production of discrete opamp-based broadcast consoles in the late '70s. Thomas Hopman of Sureshot Studios in Amsterdam has attempted to revive the DOA used repeatedly throughout the MOD-1 console for use in the DIY world. The result is a very simple circuit compared with more well-known DOAs, one that can be used in many applications including as a buffer, balanced receiver, and gain amp, or even a summing amplifier. <a href="http://wiki.diyrecordingequipment.com/wp-content/uploads/2014/05/opamp.jpg"><img class="alignnone size-medium wp-image-5984" src="http://wiki.diyrecordingequipment.com/wp-content/uploads/2014/05/opamp-300x191.jpg" alt="discrete op amp diy recording equipment" width="300" height="191" /></a> <strong>Features:</strong> <ul> <li>27db of gain</li> <li>2520 footprint compatible</li> <li>Ideal as a buffer, line receiver, or microphone preamp</li> </ul> <strong>Price:</strong> <ul> <li>Not commercially available (schematic and PCB layout can be found below)</li> </ul> <strong>More Information:</strong> <ul> <li>Complete Documentation available from <a href="http://sureshotstudio.blogspot.com/2011/09/urei-mod-1-opamp.html">Sureshot Studio</a></li> </ul>