On Fri, May 1, 2015 at 12:53 PM, Gene Heskett <ghesk...@wdtv.com> wrote:
> > > > How deep are your pockets? > [...] > > I'm talking about guys like me out there that collect "vintage" Tek > > stuff relatively inexpensively from Ebay, hamfests, Craigslist and > > other sources, and they are malfunctioning, repair them. And then run > > them through the performance checks and calibrate if necessary. My > > calibrations don't carry certs, but the scope will end up close enough > > for gummint work, or for that matter, just about any shop work you or > > I would do. > > Touche' > <VBSEG> > > > And then there are the amateur metrologists out there who have full-up > > cal labs in their shop, called the volt-nuts and time-nuts (I > > unashamedly admit to being on both those mailing lists... ;-) ) will > > cal your measuring equipment for you. > > > > I've got close to a dozen different Tek scopes from an SC502 TM50x > > mainframe plugin up to a 7854 four-bay mainframe which does waveform > > calculations and has digital storage. > > Power draw? > Here's the 7854 in all it's glory: http://www.barrytech.com/tektronix/tek7000/tek7854.html Here's a list of all the 7000 series mainframes and the plugins: http://www.barrytech.com/tektronix/tek7000/tek7000scopes.html The four-bay mainframes are really nice, allowing two vertical and two timebases plugged in at one time. You can use a timebase in the vertical slot as an amp for x-y functions too. Don't have my 7854 manual handy, so I can't get the power numbers from it. I know I don't really need a heater in the lab when I get the mainframes fired up. ;-) > > All are quite repairable should anything break. > > > > There are a few Tek products with almost unobtanium proprietary chips > > in them, but I avoid those. None of the scopes I have have those > > parts. > > How does one discern that? > The Tek Cross-reference manual, and from what the folks on the Tekscopes list have found. > > > > > > > So, perhaps there's a spot in your shop that requires 20 GHz+ > > bandwidth digital scopes, VNA's, spectrum analyzers and such that cost > > well over $20k a piece? I gotta see your shop! ;-) > > Nope, that recent Chinese digital is the best I can drag out to impress > the frogs with. I have easily impressed frogs here in WV though. :) > Our bullfrogs here in MD are bowled over pretty easily too. ;-) > > > Let's face it. A 500 MHz analog scope is way overkill for pretty much > > anything you, I or anyone else on this list will do in their shops. > > +10 at least, Mark. A 50mhz quad trace would do anything we need to do, > if they made it. That was one of the reasons I bought that newer (then) > Hitachi for the tv station, it takes a quad trace scope to setup a > DVC-PRO deck after replacing a head drum/motor assembly. And you do > that fairly frequently since head life is sub 2.5k hours run time in the > average editing booth. Its also fragile as hell when being cleaned. > Those, the first of the truly digital tape decks, caused a whole > generation of wannabe techs to be needed to keep them running well. I > couldn't hire them for any amount of money, we had by then collected the > cream of the tech minded people available locally, so I wound up doing > it all. Half the reason I retired at about 66.75 yo. Problem solved > when they converted the next generation cameras to interchangeable hard > drives as a recording medium. Sealed environment=20x more dependable. > The head assembly at $2000+, vs a $200 hard drive box anyone could plug > in. With longer recording time than the tape ever gave. Whats not to > love? > I'm kinda partial to the Tek 7000 mainframe series. There are tons of plugins besides the horizontal and vertical amps from counters, to curve tracers to spectrum analyzers to you name it. > > Cheers, Gene Heskett > Cheers, Mark ------------------------------------------------------------------------------ One dashboard for servers and applications across Physical-Virtual-Cloud Widest out-of-the-box monitoring support with 50+ applications Performance metrics, stats and reports that give you Actionable Insights Deep dive visibility with transaction tracing using APM Insight. http://ad.doubleclick.net/ddm/clk/290420510;117567292;y _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
