Recent content by teroenza

  1. teroenza

    Unclear Transformer Specifications

    Thank you all for the information. I should have noticed off the bat that it's output was DC. After finding it, my original idea was to build a Jacob's ladder, but <2mA of output current seems too low.
  2. teroenza

    Unclear Transformer Specifications

    Can someone help me better understand the specs for this old transformer I found? I'm confused why the input and output power see to differ greatly (115V*1.2A ~140W while 40,000V*2mA~ 80W). Also, the fuse rating is unclear to me. Does that mean 1 and 2/10 amp?
  3. teroenza

    Virtual Ground Voltage Reference

    Thanks. If temperatures exceed the commercial range for me, I'll have bigger problems than the amp :-)
  4. teroenza

    Virtual Ground Voltage Reference

    Thanks. The virtual ground circuit is a neat idea, but I'd like to avoid the complexity if possible.
  5. teroenza

    Virtual Ground Voltage Reference

    I'm building an Arduino voltage logger that includes an op-amp (OP27G) as a buffer on the input. Since I'd like to be able to measure voltages all the way down to zero, I want to power the amp with a bipolar supply. My initial thought was to build the rail-splitter below so I wouldn't have to...
  6. teroenza

    MATLAB User Specifying a Fit Function in a Separate File

    I have tried, for example: x = [11/2 11/2 11/2 13/2 13/2]'; % F y = [9/2 11/2 13/2 11/2 13/2]'; % Fprime z = [0.117 0.114 0.110 0.156 0.151]'; ft = fittype('HyperfineShiftFunction( [x, y], Aprime, Bprime, offset )'); f = fit( [x, y], z, ft ) Where...
  7. teroenza

    MATLAB User Specifying a Fit Function in a Separate File

    I have five data points (x,y,z), with two independent variables (x,y), and have written a function in a separate file z = f(x,y,A,B,C), with three undetermined constants (A,B,C). How can I use a Matlab fitting program to try and determine the constants? I've written a fit function before where...
  8. teroenza

    I Nuclear g-factor

    You're right. I was confusing the nuclear g-factor of a proton with the nuclear g-factor of an atom.
  9. teroenza

    I Nuclear g-factor

    Looking at the Wikipedia page for the Lande g-factor, I'm a bit confused. I thought that g_I\approx5.585, that of the proton, but then there is the line saying that https://en.wikipedia.org/wiki/Land%C3%A9_g-factor It makes sense that the nuclear and Bohr magnetons would differ by the mass...
  10. teroenza

    LaTeX Prevent Latex from Including the Location of Every Citation

    Thanks so much. I was wanting to remove them because they seemed to be cluttering the references page. I might just add a note about them, and keep them in place since you're right, they could be useful.
  11. teroenza

    LaTeX Prevent Latex from Including the Location of Every Citation

    Thanks. I think it's in the package files too. I'm going to dig through the assorted files in the folder while I wait to see if the author responds.
  12. teroenza

    LaTeX Prevent Latex from Including the Location of Every Citation

    I think it is defined by the thesis template that I'm using, not Zotero. I've tried changing bibliography styles within the same template, and the problem remains. Using Zotero and bibtex with other templates dies not display the issue. Tried looking at the thesis style in a text editor, but...
  13. teroenza

    LaTeX Prevent Latex from Including the Location of Every Citation

    I'm using Zotero to export my Bibtex file (references.bib), and including it with: \addcontentsline{toc}{chapter}{\bibsecname} \renewcommand{\bibname}{\bibsecname} \bibliographystyle{plain} \bibliography{references} For some reason, in the final References section, it is including a chapter...
  14. teroenza

    Concerting 0.1" pitch header pins to 0.150"

    Thanks for the sugestions. It is two rows of 8 pins. I like your veroboard trick.
  15. teroenza

    Concerting 0.1" pitch header pins to 0.150"

    I made a mistake on a PCB I designed, and have a set of through holes that are spaced 0.150" apart, when the component I want to put into it has a pin-pin spacing of 0.1". Does anyone know of a simple adapter that could go between these two sizes? I'm looking to avoid the time consuming task of...
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