The Northwestern University Laser and Electronics Design core facility (NU-LED) exists to give Northwestern researchers a competitive edge in the fields of electronics and optical engineering when compared to research institutions that do not provide such support. NU-LED offers professional design, fabrication, integration, and testing/repair services in these fields. NU-LED also maintains a collection of professional quality electrical test instruments which is available for rent. Our staff provides educational assistance to students, postdocs, and faculty through both informal consultation and classes. We assist groups with developing, monitoring, and troubleshooting to quickly diagnose any issues with digital, analog, and laser based systems.