stunthanger.com

General control line discussion => Open Forum => Topic started by: Bootlegger on November 06, 2012, 09:25:34 AM

Title: ??? gotta question
Post by: Bootlegger on November 06, 2012, 09:25:34 AM

  Some time back I bought a 360degree protractor from a place called helix.
When I google that name it doesn't work.
 Can someone advise me as to what I'm doing wrong, and how to contact them again?
      Thanks a lot...

Title: Re: ??? gotta question
Post by: Brett Buck on November 06, 2012, 09:28:10 AM

Quote from: Bootlegger on November 06, 2012, 09:25:34 AM

  Some time back I bought a 360degree protractor from a place called helix.
When I google that name it doesn't work.
 Can someone advise me as to what I'm doing wrong, and how to contact them again?
      Thanks a lot...

http://cbsink.lfchosting.com/helix/products/draftingProducts/index.html

   Brett

Title: Re: ??? gotta question
Post by: john e. holliday on November 06, 2012, 01:17:18 PM

This reminds me of my first year drafting set I had to get my Freshman year at Washington Rural High School at Bethel KS.   Still have the set  and use it once in a while.

Title: Re: ??? gotta question
Post by: Bootlegger on November 07, 2012, 06:13:09 AM

 y1    Thanks guy's, I appreciate the help #^

Title: Re: ??? gotta question
Post by: FLOYD CARTER on November 07, 2012, 01:41:14 PM

I still have a circular plastic gadget with numbers all over it, and it has a curved(!) cursor  It is called "Spirule".  It is for finding the electronic filter poles and zeros in the complex frequency plane (the "S" plane). 

I've forgotten completely how to use it.

(I've also forgotten how to use a "Smith Chart".

Floyd