Minutes of feedthrough meeting of 8 April, 2002. ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Present: Pof, FH, PB, AD, WW, ASD *) Milestones: - final electrical tests finished on ft35 - ft36 (HEC) was cold tested. It will have the final electrical tests done this week, and then will be shipped to CERN. - ft37 (Special) was cabled using the "suspect" batch of vacuum cables from 27 Novemenber 2000. One of the vacuum cables (vc2073) failed with a channel-to-channel short (the typical failure mode for many of the cables from this batch) at the ambient flange end during the pre-weld continuity/cross-channel short tests. The failure occured only after the cold flange had undergone the 90 degree rotatation prior welding; it had not failed during the earlier assembly tests. The failure was initially a high voltage failure (the low voltage test passed). All subsequent tests resulted in low voltage failures as well. The cable was removed and replaced with another. *) Laurent Serin notified pof that there are some pigtails which in principle could be shipped to UVIC this week (he will double check this today). Along with the 30 T52's (FCAL cables) there are 10 T47's and 24 T48's that are being delayed (~ mid May) due to missing micro-D connectors. The delay on those few T47's and T48's should not pose any problem for our production schedule. *) The Granville-Phillips vacuum gauge controller has failed and has been turned over the electronics shop for attempted repair (unfortunately no technical drawings are available, only a user manual). This controller is used for the Pirrani gauges of the cold station roughing lines and the pincarrier cooler. Although somewhat awkward, production and testing can be carried on without it. Agenda for next week (chaired by PB) ^^^^^^^^^^^^^^^^^^^^ - Milestones - Plans for the week - AOB