Very fast oscilloscopes
in [Design]
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From: Don Lancaster on 29 Apr 2010 14:03 On 4/29/2010 9:52 AM, Joel Koltner wrote: > I bet Agilent wants a pretty penny for their new 32GHz real-time scopes: > http://cp.literature.agilent.com/litweb/pdf/5990-5271EN.pdf > > And to think that it was only ~20 years ago that a Tek 11802 with the > SD-24 (24GHz) sampling head -- that samples at all of 100kHz -- was the > hotest ticket... now available on eBay for some single-digit percentage > of the original price... > > ---Joel > The last decent oscilloscope HP built was the 130C. It has been steadily downhill ever since. Their idea of "trigger" was a horse. -- Many thanks, Don Lancaster voice phone: (928)428-4073 Synergetics 3860 West First Street Box 809 Thatcher, AZ 85552 rss: http://www.tinaja.com/whtnu.xml email: don(a)tinaja.com Please visit my GURU's LAIR web site at http://www.tinaja.com
From: Joerg on 29 Apr 2010 14:06 Don Lancaster wrote: > On 4/29/2010 9:52 AM, Joel Koltner wrote: >> I bet Agilent wants a pretty penny for their new 32GHz real-time scopes: >> http://cp.literature.agilent.com/litweb/pdf/5990-5271EN.pdf >> >> And to think that it was only ~20 years ago that a Tek 11802 with the >> SD-24 (24GHz) sampling head -- that samples at all of 100kHz -- was the >> hotest ticket... now available on eBay for some single-digit percentage >> of the original price... >> >> ---Joel >> > > > The last decent oscilloscope HP built was the 130C. > It has been steadily downhill ever since. > > Their idea of "trigger" was a horse. > I said that once, in a rather grumpy way because the <censored> thing wouldn't trigger. Turned out the guy standing next to me had been on the design team of one of those ... whoops ... I wanted to vanish into the next hole. -- Regards, Joerg http://www.analogconsultants.com/ "gmail" domain blocked because of excessive spam. Use another domain or send PM.
From: John Larkin on 29 Apr 2010 14:46 On Thu, 29 Apr 2010 10:38:53 -0700, "Joel Koltner" <zapwireDASHgroups(a)yahoo.com> wrote: >"Phil Hobbs" <pcdhSpamMeSenseless(a)electrooptical.net> wrote in message >news:4BD9C26E.8050104(a)electrooptical.net... >> Their 32 GHz ones are nearly $300k. You can get a 50 GHz 11801C with lots >> of good modules for a couple of percent of that number. > >Thanks Phil, I found a price list in their product announcement here: >http://www.agilent.com/about/newsroom/presrel/2010/27apr-em10050.html > >I wouldn't be surprised if the *probes* were in the high-four digits either -- >maybe even hitting $10k+! $30K for the new Agilent probe, I've been told. New car or new probe? John
From: John Larkin on 29 Apr 2010 14:54 On Thu, 29 Apr 2010 10:41:51 -0700, Joerg <invalid(a)invalid.invalid> wrote: >Phil Hobbs wrote: >> On 4/29/2010 12:52 PM, Joel Koltner wrote: >>> I bet Agilent wants a pretty penny for their new 32GHz real-time scopes: >>> http://cp.literature.agilent.com/litweb/pdf/5990-5271EN.pdf >>> >>> And to think that it was only ~20 years ago that a Tek 11802 with the >>> SD-24 (24GHz) sampling head -- that samples at all of 100kHz -- was the >>> hotest ticket... now available on eBay for some single-digit percentage >>> of the original price... An 11801 series frame with an SD-24 is a fabulous instrument for around $2500 maybe. ftp://jjlarkin.lmi.net/DSC01371.JPG That's a 1 GHz square wave being displayed. >>> >>> ---Joel >>> >> >> Their 32 GHz ones are nearly $300k. You can get a 50 GHz 11801C with >> lots of good modules for a couple of percent of that number. >> > >If you can trust the seller that the sample heads aren't shot. This can >be a major problem with older Tek spectrum analyzers. Sometimes the >first mixer is shot and so far I haven't heard from anyone of a >successful low-cost fix, seemingly because this device is jammed into it >really deep. I've had pretty good luck with used sampling heads from ebay. I must have 30 or 40 of them, theoretically worth about a half a million dollars. We've been successful in fixing one common failure mode, a dead serial eeprom. John
From: Joerg on 29 Apr 2010 15:03
John Larkin wrote: > On Thu, 29 Apr 2010 10:41:51 -0700, Joerg <invalid(a)invalid.invalid> > wrote: > >> Phil Hobbs wrote: >>> On 4/29/2010 12:52 PM, Joel Koltner wrote: >>>> I bet Agilent wants a pretty penny for their new 32GHz real-time scopes: >>>> http://cp.literature.agilent.com/litweb/pdf/5990-5271EN.pdf >>>> >>>> And to think that it was only ~20 years ago that a Tek 11802 with the >>>> SD-24 (24GHz) sampling head -- that samples at all of 100kHz -- was the >>>> hotest ticket... now available on eBay for some single-digit percentage >>>> of the original price... > > An 11801 series frame with an SD-24 is a fabulous instrument for > around $2500 maybe. > > ftp://jjlarkin.lmi.net/DSC01371.JPG > > That's a 1 GHz square wave being displayed. > Nice. I'd put the vise up there somewhere else, in case the big one hits. Wouldn't want that falling onto my head ... > >>>> ---Joel >>>> >>> Their 32 GHz ones are nearly $300k. You can get a 50 GHz 11801C with >>> lots of good modules for a couple of percent of that number. >>> >> If you can trust the seller that the sample heads aren't shot. This can >> be a major problem with older Tek spectrum analyzers. Sometimes the >> first mixer is shot and so far I haven't heard from anyone of a >> successful low-cost fix, seemingly because this device is jammed into it >> really deep. > > > I've had pretty good luck with used sampling heads from ebay. I must > have 30 or 40 of them, theoretically worth about a half a million > dollars. > > We've been successful in fixing one common failure mode, a dead serial > eeprom. > If nothing is busted in the wire bond area that is good. But for many sellers it's probably hard to say whether the head is dead because of a bad EEPROM of because someone had exposed it to the spike from hell. -- Regards, Joerg http://www.analogconsultants.com/ "gmail" domain blocked because of excessive spam. Use another domain or send PM. |