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Date
Re: New member intro
No, I'm not sure.? They were loose in a bag with no identification. They look just like the ears on the 3456A meter which has handles and ears already installed. Is the 3456A meter a HP System-II
By Chris Wilkson · #120248 ·
Re: New member intro
Are you sure they're actually HP System-II ears? Also, don't forget that there are two types of ears for System-II enclosures: one for use with handles, and the other without.
By Dave McGuire · #120247 ·
Re: Removing the Adhesive From Hell
I recommend d-limonene.? It's orange peel extract and it's both a very good solvent for all kinds of glue.? It will take magic marker off hard surfaces.? If you buy the "Food-grade" version, you
By W1RS · #120246 ·
Re: 54615B Agilent Scope Amplitude Low When Measuring 120V AC
If you use standard X10 'scope probes, one way to measure something like AC mains is to use both 'scope channels, set to ADD with one of the channels inverted. This then gives a single trace on the
By Mike · #120245 ·
Re: 54615B Agilent Scope Amplitude Low When Measuring 120V AC
One thing about Neils post, the "earth" lead on the 'scope probe is not their for safety. It's just for signal fidelity. The resistance and current rating of the lead is not adequate to provide
By Robert G8RPI · #120244 ·
Re: How do I use these PSU output covers?
I have a couple of these supplies. When I'm using thin cables I bring them out of the slots on the lower face of the cover (I also use remote sensing with thin cables). If you don't want remote
By Peter Hamilton · #120243 ·
Re: How do I use these PSU output covers?
drkirkby@...> wrote: Oops, I forgot to attach one of the photos. -- Dr. David Kirkby, Kirkby Microwave
By Dr. David Kirkby, Kirkby Microwave Ltd · #120242 ·
How do I use these PSU output covers?
I have an HP 6674A PSU (normally 60 V 35 A), but mine with an option that increases the voltage to 70 V, but drops the current to 30 A. The output terminals should be covered by a cover, a photograph
By Dr. David Kirkby, Kirkby Microwave Ltd · #120241 ·
Re: 54615B Agilent Scope Amplitude Low When Measuring 120V AC
You don't necessarily need isolated probes, you just need to have isolation between you and the test setup. Please learn from my mistakes where I have fried probes and oscilloscopes. Here are some
By Neil Gruending · #120240 ·
Re: 54615B Agilent Scope Amplitude Low When Measuring 120V AC
As far as incorrect voltage, the 340V is pretty much spot on with the other oscilloscope, and the meter is a true RMS that is reading 120V AC. So you're thinking that this scope has an acceptable
By Bostonman <bostonman73@...> · #120239 ·
RF probe tip
So I was perusing the HPAK 6632B manuals and under performance testing it requires a "1:1 probe with an RF tip."? Elsewhere under PARD testing it says " Set the oscilloscope's bandwidth limit to 20
By MaxFrister · #120238 ·
Re: New member intro
Yes, there are some compatibility issues.? I have 1 pair of ears that won't work with the installed handles.? The cutout angle is too sharp.? These came extra in a bag with my 3456 meter and I was
By Chris Wilkson · #120237 ·
Re: Sample preparation for Impedance Analyzer
Thanks Vladan. That paper will be useful. I also found the manual for the modern Keysight 16196A (851422.pdf download) to be useful. Have you ever used the coaxial test fixture? It is coaxial as in 50
By peter bunge · #120236 ·
Re: [TekScopes] Removing the Adhesive From Hell
??? This discussion (which is also on another list) is helpful. I have an antique microphone which had masking tape on part of the outside. The finish is crinkle black. I could never get the
By Richard Knoppow · #120235 ·
Re: Sample preparation for Impedance Analyzer
Peter, Here (
By pianovt · #120234 ·
Re: [TekScopes] Removing the Adhesive From Hell
Hot water is simply amazing. Masking tape is a problem child. Its mastic starts out sticky, then progresses to gooey, and ends up dry and crumbly. I find that masking tape lets go if it is allowed
By Chuck Harris · #120233 ·
Re: Sample preparation for Impedance Analyzer
Those donuts have two O/D sizes but a selection of I/D for the holes Are these actually sample holders for the two sizes: 7mm diam x 20mm length 10mm diam x 20mm length (Outer Diameter and Inner
By peter bunge · #120232 ·
Re: [TekScopes] Removing the Adhesive From Hell
Heat makes solvents (like water... the so called 'universal solvent') dissolve compounds more completely. Yes... it's obvious; but, IMO it's underutilised, as a cleaning method. Just hot water and
By Roy Thistle · #120231 ·
Re: Sample preparation for Impedance Analyzer
Thanks Dave; I found an Operation Note for the HP 16091A Cavity test fixture. It does not explain how to use it. There are a couple of vague paragraphs in the HP 4191A manual (page 3-50 in mine) but
By peter bunge · #120230 ·
Re: 54615B Agilent Scope Amplitude Low When Measuring 120V AC
Robert makes a good point. Totally isolated equipment is safer for line voltage measurements. [email protected]> wrote: Jeremy Nichols Sent from my iPad 6.
By Jeremy Nichols · #120229 ·