RE: coupling

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

Original poster: "Pete Komen by way of Terry Fritz <twftesla-at-qwest-dot-net>" <pkomen-at-zianet-dot-com>

Ry,

FWIW, 1/4 inch copper tubing on 1/2 inch centers, lots of turns, with about
1 inch between inner turn and secondary.

Pete Komen

Original poster: "by way of Terry Fritz <twftesla-at-qwest-dot-net>"
<rblaisdell-at-juno-dot-com>

I think I have poor coupling.

I have 1/4 inch copper tubing primary.  3/4" inside to inside spacing so
1" center to center.
and 2" between innermost turn and primary.
What do some of yall run?

Thanks
Ry