happy new year to everyone. down here it started nicely, with the Optima ion gauge tripped over the break. It's controlled by an Edwards Active Gauge Model AIG-E-B2P E-Beam via PCPS. PCB board charred around the area of IC1, 3 more resistors and a diode burned, can't figure out what the IC was (ST Microelectronics 77????) or the values for the resistors. Unfortunately not the original Optima setup, hence I do not have schematics or wiring diagrams. Question is, has anyone one of these controllers sitting in a shelf and is willing to sell/let it go? Or: has anyone schematics for this controller (apparently build in 1986) Or: has anyone this or a similar model (e.g. 004847000, no PCSP port) and can send me a digital image of the area around IC1, center of the PCB assembly, the only LED sits there. thank you very much, cheers Chris -- Please consider the environment before printing this e-mail *University of Tasmania │CSL - Isotope Ratio Mass Spectrometry* Dr. Christian Dietz, Facility Manager *│*Private Bag 74, Hobart, 7005 Tasmania ( Tel: (+61) 3 6226 7820, cell phone: (+61) 4 9780 8570 *│*URL: Central Science Laboratory <http://www.utas.edu.au/research/central-science-laboratory> This message is intended exclusively for its adressee and may contain information that is CONFIDENTIAL and protected by professional privilege. If you are not the intended recipient you are hereby notified that any dissemination, copy or disclosure of this communication is strictly prohibited by law. If this message has been received in error, please immediately notify us via e-mail and delete.