Electronics Projects Index

After transitioning to WordPress, I started writing up my newer projects as ‘blog posts’ rather than ‘pages’. Please find below a list of links to every electronics project related blog post:

Comments (5)

  1. Anthony Speros says:

    HI Dr. Baker I am looking for The Nixie Driver Boards you made for your kickstarter project because I want to build your nixie freq counter if the boards aren’t too expensive.

    just found you recently love the way you explain things and the type of stuff you do..


  2. SR says:

    Dr. B-
    Thank you for the great website and YouTube presentations on the EICO 430. I recently acquired a 430 and have been have some “interesting” results which I hope you might help me fix.
    In the Horz/Ext mode using a simple curve tracer, I am getting a strange “golf club” end when testing diodes. (I can send you a photo ?) This only occurs only with diodes—the images of capacitors and resistors look as expected. I thought it might be the tracer or probes, but I tested the same diodes on other oscilloscopes and there was no “club”.
    My modest electrical expertise suggests something (a capacitor?) is not right in the vertical circuit in the H/E mode, but I’m just guessing.
    Do you have any idea of the part or area I should look at and test?
    Mucho thanks for any help you can provide.
    Best regards.
    Steve R

  3. Bob C says:

    i built one of these in 1966 and used it for several years. It worked well but ran much too hot. I advise using a muffin fan to keep it from meling down like mine did in the early 70’s when the power transformer cooked itself.

  4. Cynara Daigre says:

    Hi Dr. Baker, I was thinking about picking up an EICO 465 and a Dumont Cathode-Ray Oscillograph Type 208-B and I am needing help with proper connections.

    I’m guessing I can use banana plugs and alligator clips, correct?

    Would I have to change any resistors to use a 10x probe?

  5. Eric Nichols says:

    I inherited a 430 from a hamfest about 20 years ago and used it every day as a station monitor. It has direct to plates connection on the back, which I use for sampling an SSB envelope. Works perfect`

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