Re: 1256D Paralleling Choke

["Tesla list" <tesla@xxxxxxxxxx>]

Original poster: Daniel Hess <dhess1@xxxxxxxxxx>


Since you're using only two variacs, why not just run each as a 120 
volt unit; One leg of the 120 VAC to the input of each winding, 
common neutral, and the two wipers form a 0-240 output?

Daniel Hess



Original poster: "Cameron B. Prince" <cplists@xxxxxxxxxx>

Hey guys,

I've got 2 1256's I've mechanically ganged together. I now need to build a
paralleling choke for them. I've read some posts and websites on how this is
done, but they talk about using an old variac as the core. I have a ferrite
torroid that measures 2.25 inches O.D. 1.50 inches I.D. and is .75 inches
wide. I believe the core is physically large enough to get 16 turns of 8AWG
around it, but I'm concerned if the core is magnetically large enough or
not. Any thoughts about this would be appreciated. I do have two of these
cores, so I could stack them and wind through both at once if need be.

Thanks,
Cameron