Re: mishaps and oscillator former suggestion

["Tesla list" <tesla-at-pupman-dot-com>]

Original poster: robert & june heidlebaugh <rheidlebaugh-at-desertgate-dot-com> 

Please forgive me, but I dont see your problem. I have PVC pipe from 1/4 "
thick to 1" thick and 3/4" diameter to 14" od and I have gotten up to 36" od
any time I neaded directly from the irigation pipe supplier within 2 days
full length or cut to length. I have obtained scrap lengths from the city
shops and construction companies long enough to mount my 12" telescope, 8 ft
long. Plastic rods 1/4 to 3" dia can be obtained with a phone call to a
plastic supply house to make solenoid coils as big as your house. A 5 gallon
bucket is a 12" coil form and a kitchen trash can is a  14" dia x 24" coil .
          Robert   H


 > From: "Tesla list" <tesla-at-pupman-dot-com>
 > Date: Sat, 06 Dec 2003 12:43:35 -0700
 > To: tesla-at-pupman-dot-com
 > Subject: mishaps and oscillator former suggestion
 > Resent-From: tesla-at-pupman-dot-com
 > Resent-Date: Sat, 6 Dec 2003 12:50:34 -0700
 >
 > Original poster: "Christoph Bohr" <cb-at-luebke-lands.de>
 >
 > Hallo all!
 >
 > With the beginning og the cold part of year I decided to redesign my
 > somewhat unfaithful magnifier construction from last year. To make a long
 > story short: It arced over in many places due to the unfinished wood soaked
 > up water during storage.....but the whole setup was more of an experimental
 > one...and the right time of year for bonfires
 >
 > Now I was loking for some tube with 25 or 30cm ( about 10 to 12 inch )
 > diameter and 30cm length.
 > This is unavailable or very expensive where I live ( I would have to buy
 > much larger lenth ). Are there any ideas around for a cylindrical former?
 > I thought of an octagonal arrangement of 8 HDPE posts made from kitchen
 > board, but this would of course result in an octagonal coil....would this
 > harm the performance...after all this could look pretty cool if built
 > properly. ( spells not built by me )
 >
 > note to Antinio M. de Queiroz: your great inca program has become a almost
 > daily companion with such desing questions, can I take octagonal für round
 > coils...or will the results differ to much?
 >
 > any suggestions are welcome.
 >
 > MfG
 > Christoph Bohr
 >
 >