Hi Julius,Short answer, if you are building the secondary I designed for you, no, it won't be able to tune unless you radically alter capacitance beyond may be economical (70 nf.) Most likely your NST won't charge one that big. The long answer, you can make any inductance work with any given system (within reason) by tuning with capacitance, this is how Tesla did it, he used 1 turn primaries and tuned by adding capacitance. Lower primary inductance theoretically gives higher voltage, but what time has taught us is that energy is more important than voltage for making sparks (which is why we use massive top loads which reduce voltage) and using bigger inductances in the primary reduces heat losses in the spark gap and primary coil, saving energy at the cost of voltage. Buy more tubing, and solder it on just like it was plumbing.
Scott Bogard. On 7/27/2010 7:39 PM, Julius Crummer wrote:
Ok i just bought some 1/4" copper tubing for the primary coil...now i started it off at a 4" diameter and with 1" spacing im only able to make about 7 turns. I will be working with a 6KV/60A NST. will this primary coil be good enough or do i need additional copper tubing??? _______________________________________________ Tesla mailing list Tesla@xxxxxxxxxx http://www.pupman.com/mailman/listinfo/tesla
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