Re: HP 3852a extended memory modules info
Pay especial attention to the alphabet soup past the part number, and for that manufacturer, try to track it down to a specific outline in the data sheet.? Not all manufacturers give you a link to a
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Harvey White
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#144857
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Re: VISA problems with ancient test equipment?
I have a few C# examples which work with quite old devices. Please email me OFF list, as these are customer code and I cannot post them publicly. Tam With best regards Tam HANNA -- Enjoy electronics,
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Tam Hanna
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#144856
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Re: HP 3852a extended memory modules info
Perhaps the best thing might be to make a new, dual footprint so that either narrow or wide will fit rather than overlaying one on another ¨C which will always produce DRCs. It¡¯s rare that us
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Mike
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#144855
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Re: VISA problems with ancient test equipment?
Hello Yves, thanks for your detailed reply. I am not familiar with vb.net, so probably there are a few more code lines necessary for initialisation of the program. Maybe you can send me this code.
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dk1vi
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#144854
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Re: HP 3852a extended memory modules info
That problem has bitten me numerous times in the past. What I try to do is to order the chips, then print out the layout on paper ans place the chips to check the spacing.
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Anders
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#144853
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Re: VISA problems with ancient test equipment?
Hi Ernst, Using the 5350B series meters is not simple with GPIB at first glance. But you have to follow a small procedure: You must put the meter in HOLD mode to begin. - Press the SET key - Press the
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Yves Tardif
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#144852
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Re: RED light diffusing tape used in HP instrument displays
What about rubylith tape (like we used to use to make PCB artwork)? 3M makes tape (which is pricey) but you can buy sheets for a few dollars.
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vk2bea
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#144851
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Re: HP 3852a extended memory modules info
I keep looking at my parts and seems the issue with the parts is naming by different vendors.? .Nexperia SO20 is 7.5mm wide while TI SO20 is 5.3mm wide.? Lesson learnt - cant trust the names - need
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Maciej Kawalkowski
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#144850
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Re: HP 3852a extended memory modules info
Here is the pad difference seen on? half of U1 shown with SO20W and other half with both SO20 and? SO20W. Routing is possible but a few tracks and vias had to be moved. SO20W and SO20 overlap. This
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Maciej Kawalkowski
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#144849
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VISA problems with ancient test equipment?
Hello, my HBIB system works with 8568B spectrum anaylyzer, 8970A, 34401A and others. However I fail to connect a 5350B to my system. Diag 80 (HPIB diagnosis) shows no errors. Also tried ddifferent
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dk1vi
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#144848
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Re: looking for anritsu sitemaster s331a circuit diagram
There is a new one in groups.io for Japanese equipment. [email protected] | Messages ( /g/Japanese-Test-Equipment/messages ) The traffic is low, and requests for info
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ed breya
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#144847
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Re: HP 3852a extended memory modules info
Been there and done that.? At least you don't have two unrelated traces with the same name due to cut and paste.? Next design, then. Harvey
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Harvey White
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#144846
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Re: HP 3852a extended memory modules info
Just checked ..it's too late to change as they did the drilling and imaging the copper . wrote:
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Maciej Kawalkowski
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#144845
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Re: HP 3852a extended memory modules info
The boat has sailed. I redesigned and submitted my boards yesterday. I will see if I can stop production.. [email protected]> wrote:
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Maciej Kawalkowski
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#144844
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Re: looking for anritsu sitemaster s331a circuit diagram
I wonder if anyone had ?success in obtaining a schematic for this unit. I recently picked up an S331A that shows integrator failure in self test. EEV Blog has some repair guidance for this unit
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Dave - KO4AMB
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#144843
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Re: HP transistor 1853-0063 or alternative?
I took a quick look at the circuit, and I think the Q1 spot should have a medium-high Vcbo transistor, like 120-150V, for best reliability. I don't know what the original part was. Under normal
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ed breya
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#144842
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Re: HP 3852a extended memory modules info
I did that when I ordered a 24C256 in the wider package.? It works well, except that Eagle complains about overlaps.? Those become forgivable errors.? If that is objectionable, then put them on
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Harvey White
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#144841
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Re: HP transistor 1853-0063 or alternative?
HP 1853-0063 'Motorola MJ2268' Is listed in my files as the OEM part number. [email protected]> wrote:
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Michael A. Terrell
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#144840
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Re: HP 3852a extended memory modules info
Just make the pads longer each side, this will lose space for tracks underneath the device but that shouldn't be an issue. I've done that before as it gives a bit more versatility!
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Mike
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#144839
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Re: HP 3852a extended memory modules info
Mike: A dual footprint should work. The 74xxx245 in an SOIC-20 package is available with 5.3mm or 7.5mm width You could overlay one side of the smaller part with the same side of the larger and then
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Ed (scskits)
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#144838
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