Re: AMIDON toroids?? (fwd)

To: tesla-at-pupman-dot-com
Subject: Re: AMIDON toroids?? (fwd)
From: Tesla List <mod1-at-pupman-dot-com>
Date: Sat, 25 Apr 1998 21:22:06 -0600 (MDT)
Approved: mod1-at-pupman-dot-com



---------- Forwarded message ----------
Date: Sat, 25 Apr 1998 15:18:51 -0400
From: Cliff Fahrer <cfahrer-at-In-Touch-dot-net>
To: Tesla List <tesla-at-pupman-dot-com>
Subject: Re: AMIDON toroids?? (fwd)

Tesla List wrote:
> 
> ---------- Forwarded message ----------
> Date: Fri, 24 Apr 1998 16:38:35 -0500
> From: mel wise <mwise-at-ns.sosis-dot-com>
> To: tesla-at-pupman-dot-com
> Subject: AMIDON toroids??
> 
> I just got a catalog today from a surplus company that sells AMIDON ferrite
> toroids and iron powder toroids. I automatically looked to see what the
> largest diameters on either were. These are the largest diameter they have
> for sale: FTC=ferrite core/IPC=iron powder core
> FTC-1.142" O.D., 0.750" I.D., 0.295" H /MATERIAL 43(U=850) $2.25
> FTC-1.142" O.D., 0.750" I.D., 0.295" H /MATERIAL 61(U=125) $2.25
> FTC-1.142" O.D., 0.750" I.D., 0.295" H /MATERIAL 77(U=2000) $2.25
> IPC-2.000" O.D., 1.250" I.D., 0.550" H /MATERIAL 2(U=10 CARBONYL "E") $7.80
> (2MHZ-30MHZ)
> IPC-2.000" O.D., 1.250" I.D., 0.550" H /MATERIAL 6(U=8 CARBONYL "SF") $7.80
> (10MHZ-50MHZ)
> IPC-2.000" O.D., 1.250" I.D., 0.550" H /MATERIAL 26(U=75) $7.80
> (DC-1MHZ (LOW Q))
> 
> Now that that is done, here comes a question. Would any of these be good to
> wind chokes to protect neons? If so which ones would be idea?
> 
> Thanks
> Chris

Chris,

I am in the process of making a choke out of a 3 inch o.d.ferrite
torroid. I am winding each side of the neon on the same torroid. Not
sure about the direction of winding, but I'll let you know what works.

The big delay for me is making the RSG. I've changed the design several
times from info picked up from the list. Hopefully we can get the coil
operational in the next few weeks and test the torroid. This torrid  was
used as a choke on a machine tool AC spindle drive.

Cliff