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Re: [TCML] Bipolar Primary Diameter



Two commercial horizontal coils
#1 primary edge wound copper ribbon, 10 turns 9" od, 3/8" flat, sec 17 1/2" OAL, 16 2/4" of windings, 40 tpi, 3" OD about 6" sparks, 3 kv single spark gap #2 primary 1/4" tuning 12" OD, 4 turns, sec 31 1/2" OAL, 21" of windings, 5 1/2" od, 3kv, 0.02 cap, 9" sparks. Still not tuned, needs more capacity.

At 07:12 PM 06/12/18 +0000, you wrote:
Thanks,Tim. I should have mentioned that my secondary is 4 inches in diameter. So you're doing a little over double your secondary diameter. You get no arcs to the secondary? Do you mind telling me how your primary is made? I was thinking of just doing some turns on a section of sonotube... Regards,Dan K From: Tim Flood <tflood@xxxxxxxxxxx> To: daniel_kline7657@xxxxxxxxx; "tesla@xxxxxxxxxx" <tesla@xxxxxxxxxx> Sent: Thursday, December 6, 2018 7:12 AM Subject: Re: [TCML] Bipolar Primary Diameter I don't know of a rule of thumb. But I can say that my bipolar has a 8" diameter primary with a 3 1/2" dia. secondary. Hope this helps. Tim On Wed, Dec 5, 2018 at 7:41 PM Dan Kline via Tesla <tesla@xxxxxxxxxx> wrote: Hi All,Is there a rule of thumb for how large in diameter to make a cylindrical primary for a bipolar coil?Thanks,Dan K _______________________________________________ Tesla mailing list Tesla@xxxxxxxxxxxxxxxxxx https://www.pupman.com/mailman/listinfo/tesla _______________________________________________ Tesla mailing list Tesla@xxxxxxxxxxxxxxxxxx https://www.pupman.com/mailman/listinfo/tesla
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