Some "vary-mu"-related patents

PDF 1

PDF 2

PDF 3

Thanks Dave---those are cool.

I particularly like the drafting in the last one---back in the days when grids had righteous amounts of wiggles! :razz:

Nice, this will be good reading for the night, thanks Dave.

I particularly like the drafting in the last one---back in the days when grids had righteous amounts of wiggles! Razz

Click to expand...

All those squiggles always just looked busy to me, cluttered and messy, they just are not as pleasing to the eyes as they once were

http://www.pat2pdf.org/patents/pat879532.pdf

adam[/code]

[quote author="adamasd"]Nice, this will be good reading for the night, thanks Dave.

I particularly like the drafting in the last one---back in the days when grids had righteous amounts of wiggles! Razz

Click to expand...

All those squiggles always just looked busy to me, cluttered and messy, they just are not as pleasing to the eyes as they once were

http://www.pat2pdf.org/patents/pat879532.pdf

adam[/code][/quote]

My late father used to use a lot of wiggles for resistors and grids, and I found it very archaic as a young whippersnapper. Now that I get old I find it somewhat nostalgic (but not to the point of drawing things that way).

The we have examples of the other extreme, such as the recent thread on one-bottle preamps, which I think goes a trifle too far.

More...

http://www.pat2pdf.org/patents/pat2379484.pdf
(This one uses a modulated HF carrier... Interesting)

http://www.pat2pdf.org/patents/pat2255683.pdf

Have I mentioned that I love Pat2PDF? What a great site!