Electronics > Projects, Designs, and Technical Stuff
Home Brew Analog Computer System
<< < (44/66) > >>
GK:
In a marathon sitting, with the aid of several sheets of graph paper and pen, a ruler and some string (to measure the lengths of my hand drawn closed-function curves in order to properly proportion the blanked to un-blanked portions) and Jahonen's discrete Fourier transform, I have finally worked out the the sine and cosine Fourier coefficient values for my entire character set. Now it is is just a matter of loading the analog character ROM board, and the display unit will be finished. Although hexadecimal values are usually written with uppercase letters, the more complex uppercase letters (A through F) were too difficult to trace out with a single closed function curve, so I had to settle for lower case.

Instead of visiting the forum from now on I'll be devoting my time to updating my so far largely neglected website instead. Further updated will be posted at www.glensstuff.com


GK:
Just finished the webpage write up for the 3-D projective unit:

http://www.glensstuff.com/3dpu/3dpu.htm

Has links to all of the design files... Gerbers / uC Hex, etc.
C:
Looks like your having fun.

For you trick bag
You may not have seen this, Instead of using X and Y like a normal scope some old equipment used a circle for the trace with time being the rotation on the circle and what would be the vertical scope channel being a movement in radius. The advantage was the long trace compared to normal X & Y display. While it sounds hard to use, it was actually very easy. Using the beam to put up what would be grid lines was also quick.

Could be fun to play with

C       
GK:
Your description vaguely reminds me of some time standard/chronograph synchronizers. Do you recall a model number or make of scope that displayed that way?
 
chickenHeadKnob:
I thought C was describing polar coordinates, no?
Navigation
Message Index
Next page
Previous page
There was an error while thanking
Thanking...

Go to full version
Powered by SMFPacks Advanced Attachments Uploader Mod