Advanced Research Instruments Corp. WE HAVE MOVED Please use these new addresses for mailing and shipping: Mailing: Advanced Research Instruments Corporation PO Box 7427 Golden CO 80403 USA Shipping: Advanced Research Instruments Corporation 11950 Spruce Canyon Circle Golden CO 80403 USA We are a manufacturer of electronics for use in scientific and industrial applications requiring high performance and reliability. Producing a wide range of products from preamplifiers for PMT's and electron multipliers, to high voltage power supplies , counters and timers, precision rate meters, and computer