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ID Date Author Type Category Subject Text   4787   Mon Jun 6 16:44:34 2011 Koji Update Electronics POY11 tested The full characterization of POY11 is found in the PDF. Resonance at 11.03MHz      4807   Fri Jun 10 20:23:56 2011 Larisa Thorne Update Electronics Seismometer Box Update/graphs  (continuation of this)   The noise graphs relating total noise      4810   Mon Jun 13 16:27:10 2011 Jenne Update Electronics Seismometer Box Update/graphs                                4830   Fri Jun 17 00:17:26 2011 rana Configuration Electronics 2 RFPDs sent to LLO Koji and I found 2 RFPD boxes to send to LLO. We've put them onto Steve's desk to be overnighted to Valera.      4900   Tue Jun 28 15:23:21 2011 steve Update Electronics Coilcraft RF-design kits are restocked Our design kits are full again. They are waiting for a new brilliant PD design.      4979   Sat Jul 16 18:54:05 2011 Ishwita, Manuel Configuration Electronics AA board We fixed the anti-aliasing board in its aluminum black box,  the box couldn't be covered entirely because of the outgoing      5008   Wed Jul 20 22:16:27 2011 Ishwita, Manuel Update Electronics lying seismometer cable and plugging it We laid the cable along the cable keeper from the BACARDI seismometer to the rack 1X6, the excess cable has been coiled under      5022   Sun Jul 24 20:36:03 2011 haixing Summary Electronics AA filter tolerance analysis Koji and Haixing, We did a tolerance analysis to specify the conner frequency for passive low-pass  6x    5023   Sun Jul 24 20:47:21 2011 rana Summary Electronics AA filter tolerance analysis This is sort of OK, except the capacitor connects across the (+) terminals of the two input opamps, and does not connect to      5024   Sun Jul 24 22:19:19 2011 haixing Summary Electronics AA filter tolerance analysis   >> This sort of OK, except the capacitor connects across the (+) terminals      5034   Mon Jul 25 23:43:20 2011 Manuel HowTo Electronics Manual for 1201 Low Noise Preamplifier I found the manual for the Low Noise Preamplifier Model 1201 at this link and I attached it.      5038   Tue Jul 26 21:11:40 2011 haixing Summary Electronics AA filter tolerance analysis        5673   Sun Oct 16 02:30:00 2011 rana Update Electronics Testing REFL165 Unless the bias feedback circuit has been tuned for the 1 mm diode, its possible that you are seeing some C(V) effects. Its easy      5682   Mon Oct 17 23:28:32 2011 rana Update Electronics StochMon To get to the bottom of the RFAM mystery, we've got to resurrect the StochMon to trend the RFAM after the IMC.      5706   Wed Oct 19 18:18:03 2011 Suresh Update Electronics StochMon : Filters installed      5734   Tue Oct 25 11:48:02 2011 Katrin HowTo Electronics solder tiny smd op amps Yesterday, I had the great pleasure to solder a tiny 4 x 4 mm op amp with 16 legs (AD8336).      5748   Fri Oct 28 00:53:39 2011 rana Update Electronics POP 22/110 Design The attached PDF shows a possible gain / input noise config for the POP 22/110 that we would use to detect the RF power in the      5764   Sun Oct 30 14:08:35 2011 rana Update Electronics RFAM monitor in place. ( Uncalibrated ) EPICS troubles                                5868   Fri Nov 11 00:18:53 2011 Zach Update Electronics Precision temperature controller I have made      6265   Thu Feb 9 20:01:02 2012 rana Summary Electronics Using RF LP filters as dispersion units for the MFD  WE currently use long cables to give us the dispersion that we want for the MFD. A cable gives a long delay - both the phase      6290   Thu Feb 16 21:13:07 2012 Suresh Update Electronics REFL165 repair: PD replaced, DC response checked with a torch light [Koji, Suresh] Kiwamu mentioned that REFL165 is not responding and its DC out seems saturated      6333   Tue Feb 28 16:31:08 2012 Suresh Update Electronics REFL165 repair: Characterization The transfer function and current noise were measured.  The location of the peak shifts with the amount of incident light      6337   Wed Feb 29 00:22:35 2012 Suresh Update Electronics REFL165 repair: Installed on the AS table 1) The REFL165 has been replaced onto the AS table. 2) When the PD interface cable is      6339   Wed Feb 29 01:14:40 2012 Suresh Update Electronics REFL165 repair: Characterization                                6423   Fri Mar 16 06:17:56 2012 Suresh Update Electronics REFL165 calibration : measurements   These are the measurements for estimating the amplitude of the signal recorded in the      6424   Fri Mar 16 10:37:52 2012 Jenne Update Electronics Jenne Laser                                6425   Fri Mar 16 16:01:53 2012 rana Update Electronics REFL165 calibration : measurements  To characterize the RF V to counts we need to know the state of the whitening filter board. Was the filter on or off ?      6428   Mon Mar 19 21:25:31 2012 Suresh Update Electronics REFL165 calibration : measurements                                6590   Mon Apr 30 22:58:57 2012 Jenne Update Electronics 11MHz Marconi set to default after power outage After a power outage, a Marconi comes back to it's defaults.  It needed to be reset to the values in elog 5530.       6638   Thu May 10 21:13:01 2012 Den Update Electronics ADC 3 ADC 3 INPUT 4 (#3 in the c1pem model if you count from 0) is bad. It adds DC = ~1 V to the signal as well as noise. I plugged      6857   Fri Jun 22 20:00:14 2012 Jamie Omnistructure Electronics two RG-405 cables ran from 1X2 rack to control room [Yaakov, Eric, Jenne, Yuta] Two of our surfs, Yaakov and Eric, pulled two unused RG-405/SMA cables that      7372   Tue Sep 11 17:17:51 2012 Eric Q., Mike J. Configuration Electronics AS beam scan We conducted a beam scan on the AP table of the AS beam. We used a lens to focus the beam onto a power meter, and slowly moved      7377   Wed Sep 12 20:08:51 2012 ericq Update Electronics AS beam scan                                7380   Thu Sep 13 19:59:43 2012 Mike J. Update Electronics AS beam scan **EDIT:** Mixed up X and Y. Beam is 3.5844      7386   Fri Sep 14 01:35:55 2012 Mike J. Update Electronics AS beam scan PLOTS        7404   Tue Sep 18 22:06:21 2012 Mike J. Update Electronics AS beam scan plots and chi-squared Results of the Razor Blade Beam Scan The horizontal blade test measured the beam intensity as a razor blade passed      7691   Thu Nov 8 22:04:43 2012 Charles Update Electronics Ethernet Illuminator Control Configured ethernet controlled power strips to have static IP addresses: 192.168.113.110, 192.168.113.111 and 192.168.113.112.      7698   Mon Nov 12 23:38:50 2012 Charles Update Electronics Ethernet Illuminator Control                                7701   Tue Nov 13 00:27:50 2012 Jenne Update Electronics Ethernet Illuminator Control                                7770   Fri Nov 30 23:10:36 2012 Charles Update Electronics Vertex Illuminators  3 of the 4 remote controlled illuminators at the vertex are installed and can now be turned on via sitemap. There are a total      7873   Thu Jan 3 19:19:59 2013 rana HowTo Electronics cable racks Today I found 3 power cables in the orange Pomona cable tray, put in so that the cables were       7875   Fri Jan 4 13:23:10 2013 rana Update Electronics Photodiode transimpedance You have to correct this transimpedance ratio by correcting for the different levels of DC photocurrent in the two devices.      7879   Mon Jan 7 19:23:19 2013 rana Update Electronics Jamie's 1811 PS from 1998        7881   Tue Jan 8 14:07:04 2013 Riju Update Electronics Photodiode transimpedance                                7882   Tue Jan 8 15:28:41 2013 Riju Update Electronics Photodiode transimpedance                                7921   Sat Jan 19 16:02:28 2013 rana Omnistructure Electronics PS cleanup During our 'Women in Physics' tours today, we were reminded that there are several bench power supplies being used as permanent inside.      8008   Wed Feb 6 14:51:25 2013 Jenne Update Electronics 1 power supply replaced!                                8011   Wed Feb 6 15:11:21 2013 Jenne Update Electronics "Temporary" power supply situation [Jenne, Yuta, Rana, Steve, Manasa] We have taken stock of the lab "temporary" power supply situation,      8013   Wed Feb 6 15:39:19 2013 Steve Update Electronics DC power supplies in cabinets  East arm cabinet E9 and E10        8016   Wed Feb 6 20:00:06 2013 Manasa Update Electronics BNC cables piled up at every corner  [Yuta, Steve, Manasa] There are cables piled up around the access connector area which have been

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