Rectify 500MHz Small Signal
in [Design]
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From: Phil Hobbs on 1 Oct 2009 17:38 Nico Coesel wrote: > Phil Hobbs <pcdhSpamMeSenseless(a)electrooptical.net> wrote: > >> Tek 11802 Sampling Scope >> SD-22 12.5 GHz dual low noise head >> SD-24 20 GHz dual TDR head >> SD-42 6.4 GHz OE converter $ 200 >> SD-14 dual-channel probe sampler 3 GHz $ 175 ( 16) >> (One channel mildly broken) > > That seems very reasonable especially since the Dollar is so low. > Shipping costs to Europe are still huge though. > ;0 Those are just the prices for the plugins. Cheers Phil Hobbs -- Dr Philip C D Hobbs Principal ElectroOptical Innovations 55 Orchard Rd Briarcliff Manor NY 10510 845-480-2058 hobbs at electrooptical dot net http://electrooptical.net
From: Joerg on 1 Oct 2009 18:31 Nico Coesel wrote: > Joerg <invalid(a)invalid.invalid> wrote: > >> JosephKK wrote: >>> On Tue, 29 Sep 2009 20:00:49 -0700, John Larkin >>> <jjlarkin(a)highNOTlandTHIStechnologyPART.com> wrote: >>> >>> 20 years away from the lab and i don't remember what is good stuff any >>> more. The stuff must be functional, but 20+ year old stuff is quite >>> acceptable. For computer interactivity i expect to buy/use USB to >>> GPIB converter(s). Serial is acceptable as well. >>> >>> My proper email address is in the headers. I have an objection to >>> dealing with e-prey or preypal myself. >> >> Unfortunately EBay has monopolized the market for 2nd hand, they are >> almost like Walmart. So they call the shots, and thus also the fee levels. >> >> The 2465 is a very good choice, this is the scope I always recommend to >> clients whom I feel are in dire need of a "real" scope. Can't go wrong. >> But remember that those things can be very tired. > > I bet the Lecroy LH314H (rebranded Iwatsu SS-7847A) is just as good as > the 2465 and more recent. Sometimes they come quite cheap on Ebay. > Got a link? Search engine didn't find it. So far I was less than impressed with LeCroy scopes but maybe they've got a gem somewhere. The epitome of ghastliness are Windows-based scopes ... yuck. -- Regards, Joerg http://www.analogconsultants.com/ "gmail" domain blocked because of excessive spam. Use another domain or send PM.
From: JosephKK on 2 Oct 2009 02:09 On Thu, 01 Oct 2009 13:28:51 -0700, Joerg <invalid(a)invalid.invalid> wrote: >JosephKK wrote: >> On Tue, 29 Sep 2009 20:00:49 -0700, John Larkin >> <jjlarkin(a)highNOTlandTHIStechnologyPART.com> wrote: >> >>> On Tue, 29 Sep 2009 15:27:53 -0700, Joerg <invalid(a)invalid.invalid> >>> wrote: >>> <snip> >>> Too much cheap surplus stuff on ebay, too. I'd love to do a cheapish >>> USB TDR, but there's probably no good market. >>> >>> John >> >> John L, Jeorg: >> >> I am in the market for (in no particular order) a fast analog scope >> maybe a TEK 2465B. I could use an 11801/11802 with a few heads good >> to say 6 GHz, and some probes. A decent freq/interval counter. A >> 5-1/2 digit multimeter (with 4 terminal ohms, and true rms ac >> measurements up to 100 KHz). And an AM/FM modulatable function/sweep >> generator up to 20 MHz. Except for the good scopes, this is high >> hobbyist to low end or mid-range lab stuff. >> >> 20 years away from the lab and i don't remember what is good stuff any >> more. The stuff must be functional, but 20+ year old stuff is quite >> acceptable. For computer interactivity i expect to buy/use USB to >> GPIB converter(s). Serial is acceptable as well. >> >> My proper email address is in the headers. I have an objection to >> dealing with e-prey or preypal myself. > > >Unfortunately EBay has monopolized the market for 2nd hand, they are >almost like Walmart. So they call the shots, and thus also the fee levels. > >The 2465 is a very good choice, this is the scope I always recommend to >clients whom I feel are in dire need of a "real" scope. Can't go wrong. >But remember that those things can be very tired. > >For the generator check out modulateable DDS eval boards. > >If you really don't want EBay your only options are 2nd hand re-sellers >(expensive, usually), company auctions (very good deals, got some of my >stuff that way) and another very good source are hamfests. If someone i knew somewhat, that did not have issues with eprey was interested in helping me out, i would not be so remiss as to not include some consideration for their assistance.
From: JosephKK on 2 Oct 2009 02:10 On Thu, 01 Oct 2009 21:21:00 GMT, nico(a)puntnl.niks (Nico Coesel) wrote: >Joerg <invalid(a)invalid.invalid> wrote: > >>JosephKK wrote: >>> On Tue, 29 Sep 2009 20:00:49 -0700, John Larkin >>> <jjlarkin(a)highNOTlandTHIStechnologyPART.com> wrote: >>> >>> 20 years away from the lab and i don't remember what is good stuff any >>> more. The stuff must be functional, but 20+ year old stuff is quite >>> acceptable. For computer interactivity i expect to buy/use USB to >>> GPIB converter(s). Serial is acceptable as well. >>> >>> My proper email address is in the headers. I have an objection to >>> dealing with e-prey or preypal myself. >> >> >>Unfortunately EBay has monopolized the market for 2nd hand, they are >>almost like Walmart. So they call the shots, and thus also the fee levels. >> >>The 2465 is a very good choice, this is the scope I always recommend to >>clients whom I feel are in dire need of a "real" scope. Can't go wrong. >>But remember that those things can be very tired. > >I bet the Lecroy LH314H (rebranded Iwatsu SS-7847A) is just as good as >the 2465 and more recent. Sometimes they come quite cheap on Ebay. I can handle LeCroys, but they are samplers not real time scopes.
From: Joerg on 2 Oct 2009 10:44
JosephKK wrote: > On Thu, 01 Oct 2009 13:28:51 -0700, Joerg <invalid(a)invalid.invalid> > wrote: > >> JosephKK wrote: >>> On Tue, 29 Sep 2009 20:00:49 -0700, John Larkin >>> <jjlarkin(a)highNOTlandTHIStechnologyPART.com> wrote: >>> >>>> On Tue, 29 Sep 2009 15:27:53 -0700, Joerg <invalid(a)invalid.invalid> >>>> wrote: >>>> > > <snip> > >>>> Too much cheap surplus stuff on ebay, too. I'd love to do a cheapish >>>> USB TDR, but there's probably no good market. >>>> >>>> John >>> John L, Jeorg: >>> >>> I am in the market for (in no particular order) a fast analog scope >>> maybe a TEK 2465B. I could use an 11801/11802 with a few heads good >>> to say 6 GHz, and some probes. A decent freq/interval counter. A >>> 5-1/2 digit multimeter (with 4 terminal ohms, and true rms ac >>> measurements up to 100 KHz). And an AM/FM modulatable function/sweep >>> generator up to 20 MHz. Except for the good scopes, this is high >>> hobbyist to low end or mid-range lab stuff. >>> >>> 20 years away from the lab and i don't remember what is good stuff any >>> more. The stuff must be functional, but 20+ year old stuff is quite >>> acceptable. For computer interactivity i expect to buy/use USB to >>> GPIB converter(s). Serial is acceptable as well. >>> >>> My proper email address is in the headers. I have an objection to >>> dealing with e-prey or preypal myself. >> >> Unfortunately EBay has monopolized the market for 2nd hand, they are >> almost like Walmart. So they call the shots, and thus also the fee levels. >> >> The 2465 is a very good choice, this is the scope I always recommend to >> clients whom I feel are in dire need of a "real" scope. Can't go wrong. >> But remember that those things can be very tired. >> >> For the generator check out modulateable DDS eval boards. >> >> If you really don't want EBay your only options are 2nd hand re-sellers >> (expensive, usually), company auctions (very good deals, got some of my >> stuff that way) and another very good source are hamfests. > > If someone i knew somewhat, that did not have issues with eprey was > interested in helping me out, i would not be so remiss as to not > include some consideration for their assistance. I can't help you there because (so far) I've never bid on EBay myself, only my clients, a lot. If you do need a lot of stuff I'd consider setting up an account. I guess you could always cancel it when done. -- Regards, Joerg http://www.analogconsultants.com/ "gmail" domain blocked because of excessive spam. Use another domain or send PM. |