On Wednesday 18 April 2018 11:25:46 jeremy youngs wrote: > Anyone try these? Or similar? > eBay item 321994801776 > I have an old vacuum tube tectronix scope , it hasn't been fired in > ten years and I don't have an auto transformer to reform the caps so > I'm concerned about that. I do know someone that does , and I could > probably get him to do it. But the small size and portability of this > would be great for my primary income as an auto tech. Thanks
It is nowhere near fast enough. Thats an audio scope at best. I'd not use it to inspect any bussing in a modern auto, its way too slow. For generalized work, I have an older version of this, gave it to myself for my 79th bday: <https://www.ebay.com/itm/ATTEN-OSCILLOSCOPE-Scope-GA1062CAL-60MHz-1GS-s-7-800X480-LCD-Screen-Multimeter/263107826706?hash=item3d4272d412:g:LGsAAOSwZtlZ9-Dy> Which mine needs a firmware update but and I have the files here, but linux "dfu" can't find a port to write to behind the usb socket on the front panel. Presumably windows could, but I don't have a winders box on the premesis(sp?) Running this one will take a while to learn, but once used to it, it works well. And the color display is probably 10x brighter, in addition to 3x the screen area of my Hitachi V1065, a 100mhz, dual channel analog scope, now 20+ years old and otherwise still in calibration. You will see a narrow spike on this thats very low repetition rate that an analogue scope will miss unless the room lights are killed and you wait for your eyes to dark adapt. In that regard its a storage tube display, but 100x sharper. The scope you linked to is a 2 year scope as the battery will swell up and die by then, mine, a simpler version, did anyway. Within its speed limits, it worked well, but those speed limits are not good enough to watch the interface lines from the bob to the machine when checking something from linuxcnc. Nearly all of this digital stuff has a max input of under 100 volts before the 10x probe, which means it would be damaged or the calibration degraded when looking at a bus with a full power rs-232 signal on it on a continuous monitor basis. -- Cheers, Gene Heskett -- "There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order." -Ed Howdershelt (Author) Genes Web page <http://geneslinuxbox.net:6309/gene> ------------------------------------------------------------------------------ Check out the vibrant tech community on one of the world's most engaging tech sites, Slashdot.org! http://sdm.link/slashdot _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
