650 um spacing, cjm29 email. I have a Spellman PCM50P50X2572, which I assume is an OEM supply. It works fine with pins jumpered 1-15, 2-8,3-11. I have a two questions about it: 1. The nameplate rating is 1 mA at 50 kV while the general PCM series would be about 2.5 mA. Is this simply how it's set or is there an internal current limit adjustment, or is it just whimpier than the standard PCM supply. Assuming it requires a jumper or resistor to convert to the full 2.5 mA, I would appreciate instructions. I could start tracing the pot circuit but would much prefer not to have to! :) 2. The interlock appears to be permanently enabled so that pins 5-6 don't do anything - the interlock relay comes on when power is applied. Can this be restored to normal PCM behavior? Thank you very much! (I sent a similar email a few days ago with no reply. Please, please, at least acknowledge this request even if you cannot help.) Samuel M. Goldwasser, Ph.D., Research Consultant sam@ece.drexel.edu Alternate email: sam+nm1@seas.upenn.edu Coherent mirrors moved to cohrmirrors. Varo stuff moved to Misc/Varonotes Spiricon stuff moved to spiricon Wavelength PD1 Si Resp ---------------------------------- 808 nm 1.38 1.27 670 nm 1.08 1.03 633 nm 1.00 1.00 612 nm 0.91 0.94 604 nm 0.88 0.92 594 nm 0.84 0.89 543 nm 0.67 0.77 532 nm 0.61 0.73 514 nm 0.51 0.66 488 nm 0.38 0.52 To enter hyperlinked auction number into spreadsheet: Copy eBay auction URL from browser (right click, copy) Paste it to the desired cell (right click, paste) Double click cell and then click on any other cell to make the original one have an active hyperlink. Right click on this cell and without picking any option go to edit box (up top of Excell). Edit URL in edit box so only auction number is present. Hit Enter. Then clicking on auction number will take you to auction. 1 +15 VDC 2 Power GND 3 ~MEAS 4 MEAS Return 5 MEAS 6 NC 7 ~REF 8 REF Return 9 REF #1: Lifted solder pad. #2: Corrosion. #3: Optics fell off. #4: Bad threads on battery cap. #5: OK. 220 #36 220 #52? 200 #72 200 #95 220 #51 200 #48C #67H 20-2366FR 10-3026 Hi: So, you're running the computers now as well??? Congratulations! :) I had asked Jeremy to look into three things about 2 months ago. I even called twice. Now I understand perhaps why nothing was done. So, do I ask you or is there someone else there now or someone who will be hired I should just wait for? These relate to continuing support of the repairfaq Web site: 1. Please arrange for mbox-style email to my account on ece.drexel.edu (sam@ece.drexel.edu) so I can either receive it there or .forward. MBOX can be in ~/Mail if that's easier. I would like to be able to log in to my normal unix account and read or forward mail. 2. Please create/restore the account for Filip Gieszczykiewicz (was filip@cbis.ece.drexel.edu). This should be on repairfaq.ece.drexel.edu with group privilages to reparifaq files. If you need approval from Prof. Herczfeld, I can see about that. 3. Is there an Emacs on the server that has repairfaq? I had tried copying a version from somewhere else but never got it to work quite right and read the .emacs init file properly. If you need Prof. Herczfeld's blessing, I can ask him, though I haven't to this point since these are basically ongoing issues, not anything new. And, I can even call you on the (gasp!) phone. No hurry, I've waited this long, but geologic time might become annoying. ;-) Thanks so much!!! --- sam Speed of light: 299,792,458 m/s I'd check, 1 lamp for degradation, 2. pump cavity reflectance 3. qswitch timing. 4. risely prisms. half moon suggests alignment or qswitch. Since it worked, since it blew holes in things, and since I dont own a joule meter, I never gave it much of a teardown. I mainly suspect they never replaced the lamp after .5 million shots. sTEVE NIST atomic spectra Ne I 6329.9145 I should add that depending on how your reception is now, it may not be a smooth transition. DTV is a lot more fussy about signal quality. While distance from the transmitter, multipath, and interference will just result in snow or ghosting in the picture and usually no degradation of audio with analog TV, with DTV, the picture may breakup, freeze, or disappear entirely. And the sound will drop out at the same time. While there is a "signal level" function built into the DTV tuners and converter boxes, this is not instantaneous or true real-time display and also is not a particularly reliable indication of actual reception performance under many conditions. DTV may all be a grand conspiracy to get people to sign up for cable, fiber, or satellite! :) The makers of DTVs as well as Consumer Reports seem to expect everyoneto be on a wired feed, so DTV tuner performance appears not to be a high priority in the design and almost never addressed in ratings. DTV Boondoggle: Comments on "TV goes digital, stays a wasteland": ---------------------------------------------------------------- We've been told that DTV will be the best thing since sliced bread. But, not only will there be the same old mediocre (or worse) shows. For millions, the conversion will be a major hassle and/or major expense. With a wired connection like broadband cable or fiber-optic, there is little doubt that the picture and sound can be stunning - at a price. For those who have such a setup, there will be no need to do anything. The signal over the wired connection will remain the same, though service providers will no doubt be touting "digital and high definition", some of which will come at a higher monthly price (not counting the possible need at that point to buy a new TV). But not everyone's priority is to have crystal clear HD video on a 100 inch screen along with multichannel theater-quality gut wobbling audio. There is an entire class of people who have been perfectly content with analog TV and all its shortcomings. Namely, those who do not have a wired connection but have one or more TVs using their built-in antennas without requiring an outdoor antenna. These are often the poor or elderly but often include those who would simply like to watch the 6 PM News and consider content more important than crystal clear HD resolution where every hair follicle on the overpaid anchor-persons stands out in stark detail. With broadcast analog TV, the quality may only be so-so and may include ghosts, fluttering, and snow, but even a very weak channel is viewable. And the sound is generally quite acceptable almost no matter how poor the reception. With DTV, the picture and sound are either there or they are not. Even in an area with a strong signal, reflections from nearby structures, wind, and even air traffic can reek havoc with DTV reception resulting is video freezing and audio dropping out. These might be considered an order of magnitude worse than a bit of ghosting. With analog TV, fiddling with the antenna might help. Since the TV's response to such fiddling is totally instantaneous with analog reception, it is simple and painless to adjust for the best picture. With DTV, the TV or converter box's brain has to figure out what the signal is like and then display the signal strength. So, the response to adjusting the antenna is delayed by a second or more, and the display isn't always accurate or reliable in any case, and may show good signal strength even when the reception is not reliable. This will affect those not techno-savvy particularly hard and especially the elderly who do not have someone on-hand to help out. Some of these issues may be a result of the DTV standard and some may improve as technology advances, but come next February, millions of people will find their lives more complicated and/or expensive due to the switch-over. For those who have gotten used to dealing with a single remote control, they will now have to use one for the TV and one for the converter box, in addition to fiddling with the antenna. In addition: * Portable TVs or in-vehicle TVs and similar devices will have even worse problems. The idea of a small screen portable DTV may be an oxymoron. * TV radios - convenient for listening to TV sound without the picture will no longer function and as with portable DTV, will likely not have a practical replacement. * And of course those spare TVs you had in the spare bedroom or basement. They're require eiter a wired connection or converter box as well. In some sense, DTV is a big step backwards. While so much else is going wireless, for many, reliable TV reception after February 17, 2009 may only be possible through a wire. Andy's HD DVD diode.

Tests of the violet laser diode show it capable of at least 75 mW before dying with at least some capable of 180 mW or more. Yikes! However, others will die at around 90 to 100 mW, and one sample I tested for hours showed steady degradation in output power when run with a constant current initially producing 75 mW. That 180 mW diode didn't seem to degrade significantly even at 180 mW though. 9101150134711501748542 relay 1Z14VW740398340254 SFPI drivers Mark-Tech SP-117A SP-117C CO-200 Synchrolase HP-5517/5501B HP-5501A LFS-200 LFS-220 SG-SL1 Zygo 7701A/B