Re: New to tesla coils

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

Original poster: "Dr. Resonance" <resonance-at-jvlnet-dot-com> 


If it doesn't tune, don't run your variac up over 30% max.  Add on some
scrap wire 12 AWG for an extra 5-10 turns supported on cardboard to find the
correct tuning point and then redo your primary.

It's always best to do a scrap wire test BEFORE you make you "finished"
winding.

Dr. Resonance

Resonance Research Corporation
E11870 Shadylane Rd.
Baraboo   WI   53913
----- Original Message -----
From: "Tesla list" <tesla-at-pupman-dot-com>
To: <tesla-at-pupman-dot-com>
Sent: Sunday, October 12, 2003 7:40 PM
Subject: RE: New to tesla coils


 > Original poster: "Lau, Gary" <gary.lau-at-hp-dot-com>
 >
 >  >Ok,  I have made my primary, it's only 13.5 turns though, I used 50
 > feet
 >  >of 1/4 inch copper refrigerator tubing.  Is this enough turns?  Also,
 >  >the closest it is to the secondary is 1.75 inches.  Will it arc?  This
 >  >is using a 12kv 60ma transformer.
 >
 > Fine, even 1" would be adequate.
 >
 >  >Also, right now, I have the secondary tube screwed down to the plywood
 >  >supporting the secondary.  Is it important to use non-magnetic screws
 >  >since this will effect the field?
 >
 > Any kind of screw, metallic, magnetic, or otherwise, is fine.
 >
 >  >Also, for the RF ground.  Do I need to put a copper wire 6 feet into
 > the
 >  >earth?  Or can I just stick it in a foot or so?
 >
 > Sorry, it really needs several feet to be in intimate contact with the
 > earth.  Note that the quality of one's RF ground won't affect the coil's
 > performance; it just affects how much RF is coupled into your AC wiring.
 >
 > Regards, Gary Lau
 > MA, USA
 >
 >
 >