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I have one: a Hemmi 153: http://www.followingtherules.info/hemmi-153-scales.html

My sister teaches math at the University of Wisconsin. She has one of those 8 foot slide rules in her office and was taking it to a classroom to demonstrate. A student passed her and said "You know,

I also have some 8' Pickett and K&E instructional sliderules and a dietzen transparent one that goes on an overhead projector - old school all the way ,:)

One more slide rule off-topic, please. I have in my possession a slide rule picked up on the trashbin at Ames Lab IA State.? It is bamboo, and has the note 'This slide rule has been furnished as a

I have a large K&E slide rule that must have 26 or so scales on it. I also have a 6 inch Pickett that we used to call the "Pocket Pickett" :-) Zack W9SZ

You may laugh, but sometimes, small changes in dimensions are important, and therefore so is temperature. For Aluminum, one might see a length change of 0.2% (and corresponding resonant frequency

Hi Scott, As an aside, I have used talc as a lube for bamboo slide rules over the decades. My old Post Versalog II, (with leather case, and both in MINT condition), had small amounts of talc placed in

I collect sliderules. I have approximately 300. Pickets. Post, K&E, Dietzen, Chavez Roos, as well as some unique Russian and Chinese sliderules. My favorite is a K&E 6" Deci-Lon.

Slide rules: https://www.oughtred.org/index.shtml Larry AC9OX

I have two different Post slide rules from back in the day, but my most valued one is specifically designed for electronics formula use by Picket (reactance, resonance, resistance, etc). Stephen W9SK

One must wonder if you ever owned a slide rule? hihi (Still own my eye saving yellow one by Picket) I recently saw an article for a 20 Meter beam with dimensions in 1/10,000ths of an inch. Someone

And forgets to say whether these are Imperial Gallons (defined as 4.54609l) or Queen Anne (as used in the USA) gallons (defined as 231 cubic inches—whatever an inch might have been at the time,

Thanks Roger. Using Linux Mint here. Found the file though ~/.config/NanoVNASaver/NanoVNASaver.ini But there don't appear to be any sweep settings in that file except

While the file format spec may define formats for things other than S parameters, they're not particularly common. Not to say that they don't exist, but every tool I've used only uses S parameters. Th

Hey guys, Bringing the? reactance to zero (if you really want that for your antenna), don't forget that there might be a coax cable involved in the measurement set-up.? That coax can move the Z of

I agree with W0LEV 100% on using the phase information to guide one's tuning efforts. That valuable phase information is what puts the "Vector" in "vector network analyzer"(VNA) and is what makes it

Sorry, checked the wrong input file, scikit-rf cannot read Z-Parameter (NotImplementedError: only s-parameters supported for now.): Traceback (most recent call last): File "<stdin>", line 1, in

Did you see the example 9 and 10 from my posting below (out of touchstone rev 2.0 spec)? You can for sure store also impedance in a s1p file if you calculate the Z-parameter from S-parameter - this is

Hey Doug, If you can figure out how to build and tune an antenna with the Nano after a stroke you’re OK in my book (a retired family doc). The body may not follow all your commands but some of the

In a .S1P file it is not an impedance that is described but S11 # HZ S RI R 50 6800000 0.4178235144152254 -0.6694732263322638 For each line you find in order: Frequency in Hz the real part of S11 the