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You are not the only one, I can't get anything but an invalid connection also. "Move along now, nothing to see here, these are not the droids you are looking for." Best Regards, Allen -----Original Message----- From: Teslalabor <teslalabor@xxxxxxxxxxx> To: Tesla Coil Mailing List <tesla@xxxxxxxxxx> Sent: Fri, Jan 2, 2015 8:07 am Subject: Re: [TCML] Need some advice on 150kva sgtc Okay, obviously I am the only one who doesn't see any photos when clicking on: https://www.facebook.com/photo.php?fbid=671287332969054&set=a.110176789080114.14601.100002633816524&type=1 For me this link is invalid. Are there photos of the system anywhere else, maybe even for the "non-facebook" people? ----- Original Message ----- From: <lightningfor@xxxxxxxxxxxxxxxxxxxxxx> To: "Tesla Coil Mailing List" <tesla@xxxxxxxxxx> Sent: Friday, January 02, 2015 3:31 AM Subject: Re: [TCML] Need some advice on 150kva sgtc > It would be intersting to see how arc length would improve if you lift the > coil up a bit off the ground, and increase the BPS rate. > Coupling is also pretty important on big coils... > Have you experimented with increasing the coupling at all? > > Carlos > > On 2015-01-02 08:13, vam@xxxxxxxxx wrote: >> You got my message spot on Carlos. >> The coil produces constant streamers about 20- 23 feet, or 6 - 7 meters. >> It's very impressive. But i did make a coil with 1 m winding length >> before, producing 3 meter sparks at 20 kw. >> so i expected around 10 meters with this set up. but 7 seems the max. >> >>> Big machines like this are typically less efficient than there smaller >>> brothers and sisters. >>> I have not taken the time to run the numbers on the info you provided, >>> but if the system is well balanced and in tune and pulling 40kva, I >>> would expect to see 20-25 foot long arcs at minimum. >>> The height of the coil will also be a limiting factor to some degree... >>> >>> I assume from your question that you are not happy with the performance >>> or it did not meet your expectations? >>> >>> Kind regards, >>> >>> carlos >>> >>> On 2015-01-02 06:03, vam@xxxxxxxxx wrote: >>>> Me and some friends built this coil. It's total height is 5 meters. the >>>> donut is 2,60 by 60 cm. the coil is 65 cm dia with 1200 turns of >>>> 2.5^2mm >>>> installation wire. about 3.6 meter winding length. Cap, DR resonance >>>> 100nF, 80kv 4 in parallel. >>>> We feed it with a 180kva 10kv yz5 transformer. Rectify the lot to 16kv. >>>> ballast ensures 32kv on the cap. at 200 bps we draw 50-60 amps per >>>> fase. >>>> so roughly 40 kw. Max bps is 700. >>>> Now the question. What kind of spark length should be possible from >>>> this >>>> coil? >>>> >>>> Picture of the coil. >>>> https://www.facebook.com/photo.php?fbid=671287332969054&set=a.110176789080114.14601.100002633816524&type=1 >>>> >>>> _______________________________________________ >>>> Tesla mailing list >>>> Tesla@xxxxxxxxxx >>>> http://www.pupman.com/mailman/listinfo/tesla >>> _______________________________________________ >>> Tesla mailing list >>> Tesla@xxxxxxxxxx >>> http://www.pupman.com/mailman/listinfo/tesla >>> >> >> >> _______________________________________________ >> Tesla mailing list >> Tesla@xxxxxxxxxx >> http://www.pupman.com/mailman/listinfo/tesla > _______________________________________________ > Tesla mailing list > Tesla@xxxxxxxxxx > http://www.pupman.com/mailman/listinfo/tesla _______________________________________________ Tesla mailing list Tesla@xxxxxxxxxx http://www.pupman.com/mailman/listinfo/tesla _______________________________________________ Tesla mailing list Tesla@xxxxxxxxxx http://www.pupman.com/mailman/listinfo/tesla