Thank you Jim N5IB and Jim Sheldon.. Inspired by your examples I returned to the struggle and finally figured out how to do a parameterized coil form in FreeCAD. Whew! The point about the CPU demand o

Hello Jim. Very nice work on the coil form. I test printed your .stl file and it came out perfectly. If you don't mind my asking which CAD application do you use? Some time ago I attempted a similar p

The schematic for the 4SQRP Freq Mite kit solved a puzzle for me, namely how to boost a small Hi-Z input voltage to a robust 5 volts in order to drive a counter or etc., without loading the source. St

Hilarious! And the filament voltage won't kill you.

Another similar suggestion. Amazon sells what they call a multifunction tester (range $10 - $15). These amazing devices display the schematic symbol of the part as well as its value. If you test a mol

Very nice indeed. If you don't mind my asking, where did you get the plate transformer? -Lloyd (WA4EFS)

I have also read the book. It is very good.

Some time ago I posted an illustrated story about my personal introduction to 3D printing at https://lloydm.net/Demos/threeD.html. As to where to put the printer in a house that has no room.. How abou

Beautiful! Which CAD software do you use/prefer? 73, -Lloyd (WA4EFS)

Just so everyone knows, if a messages starts with “Dearest, …” it’s not from me! J Lloyd (WA4EFS)

Thanks to all who have described experiences with 3D printing (and wishes)—lot’s to think about but not an easy decision! 73, -Lloyd (WA4EFS) …

To those who have used a 3D printer to fabricate panels or other accessories – Please share your experience, including printer make/model, ease of use, quality of output, etc. Thank you, -Lloyd (WA4EF

Take comfort in having been spotted by K7 and VE6 (http://www.reversebeacon.net/index.php). 73, -Lloyd