Thanks for the video! I just started the VTTC journey. I ordered a GU81M off ebay. My uncle was an RF Tower placement consultant before he passed away. My cousin thinks he has a small collection of high power transmitter tubes. I am excited to see what. I have been following Steve, Loneoceans, Stevearcs at Tested to Destruction and many others. I still want to build a rotary spark gap coil, but gravity is pulling me towards the VTTC first. I think it's because I miss my early laser light show days of argon, krypton ion plasma tubes and copper vapor tubes. There is a magic there that is lost in the digital and solid state world.

Very good! I recall coolers in my day (late 90's, early 2000s) having trouble getting extra output from adding an 833a. ...answer is F0 (fundamental resonant secondary frequency). Assuming all coupling factors and tuning are maxed, F0 tends to determine spark growth and branching, etc. nice tc work among the chaos of junk. Yes, thanks for sharing VTTC info. Steve helped, but really John Freau knew more, and had lots of VHS tapes. John F. knew more than Steve and myself, but John and I learned mostly via form and intuition, then showed our work, i.e. derivation of the Freau Equation post hoc post data. ...but it worked and so did the math.

Thank you very much for that info Regards Roger.

Thank you for sharing your information. (wonderful coil)

Brutal... I'm reminded of Transcranial magnetic stimulation. Scary bad arcs here.. This tesla coil is operating at a frequency that I am Stunned by :)

Hi Bud, this was great! I am impressed. You are one smart dude to have picked up quickly what it takes most of us years to learn in traditional ways. It is so great that you like to share the knowledge with others too, as I do too as you know. I love the tube coils. Can you fire it continuous wave instead of pulsing at a lower power setting so as not to overload the plates? It is fun lighting incandescent bulbs through your body (CW only). I look forward to talking more with you on this. Jamie

@forrestmohrman8768

7 жыл бұрын

Hi Jamie, I started this quest 10-15 years ago. Knowing very little about electronics. This VTTC is my starting place. I am now retired and teaching myself about this subject. I have progressed over the years mostly because of my never give up attitude and never quit learning. My background is in tool and die and die engineering. I am one of the best in my profession because of my never quit attitude. After 48 years at age 62 I sold the business to my son and daughter in law. Life is great. Tesla coiling is my main hobby and I just cannot get enough of it.

This is one of the best Tesla coils I've ever seen, sure would be nice to have the plans for it. Regards Roger.

Wonderful!! Since the frequency is below 1Mhz or so, I believe Litz wire could be used to greatly increase the Q factor of the secondary. Has anyone experimented with Litz wire on VTTCs?

Lovely!

@Forrest Mohrman I'm building something similar as well. I'm seeing about 24" out of my setup currently. My secondary is on 3" PVC pipe 18" long. Resonate frequency is about 475khz though with the top load (smaller than yours) and a 36" wire attached to simulate a streamer. I'm using a mica transmitting cap for my primary that's rated at 13A at 10kv and .003uF. A few questions though and hopefully this will steer me towards increasing the length of my arcs. What is the PVC diameter of your primary as shown? I'm guessing it's at least a 6" PVC pipe. (What I'm currently using) But with how many windings? (I'm setup with a tap per turn up to 25 turns) Then your tickler coil. What is the PVC diameter for that? I'd like to move mine up and out like you've got. Also how many turns for your tickler?

i would love to know whats under the hood .... im trying to do this aame thing now with my gu5b coil....

Very nice Tesla coil. Regarding your comment that you need a small capacitor so you can have a longer primary coil - could you not have a large capacitor and maintain the primary length by spacing out the turns, rather than having the turns touching each other? I am only asking because I have a 0.44uF 100kV Maxwell pulse capacitor. Have not built a coil yet.

sweet... i'm playing with a PL84 coil, nothing special, the fact is that i managed it to run mostly with an off-filter-frequency primary capacitor, i mean that the smallest capacitor i can fit that keeps the circuit running gives the best output, that is like 2cm continuous wave :D, i've also seen that fitting a capacitor that makes the classic tank circuit runs the whole system a bit stressed, tested also on a small base-feedback MOSFET coil i have, better filter the system somewhere else, apparently, or by just the secondary resonance... the point with the VTTC is (in my modest opinion) to provide a primary that gives the most appropriate impedence at frequency, regarding the tube AND let it go freely (that will quite likely make high pulses on the anode), the small capacitor remaining may be just to avoid high freqeuncy transients that would kick the coil to an harmonic frequency

Would you sell me the plans for that Tesla coil I am 70 years old and new to all this I have ordered two new 811A tubes and I have a 15000 volts at 30Ma neon transformer and 12 -2000 volts Dubilier 0.15uf and I have the secondary 4 1/2 ''w by 28'' talk with 26 ga wire and 100 ft of 1/4 tubing. Now I am lost. no spark gap yet I was wondering if the 811A tubes could be used for the spark gap .? A reply sure would be great. Regards Roger.

@forrestmohrman8768

5 жыл бұрын

Hi Roger, I do not have plans for this coil. However I would like to steer you to the man who helped me figure it all out. He is a genius at explaining difficult electronics on a level we can all understand. The website is : stevehv.4hv.org/In particular is the section on vacuum tube tesla coils. See belowstevehv.4hv.org/VTTCindex.htmBud

His first mistake was trusting Information Unlimited.

Awesome work! Have you tried any Tesla coils that resonate with the Earth's fundamental freq or an odd multiple thereof? you should try it sometime if you want big sparks.

@sadface7457

4 жыл бұрын

The objective of telsa coil is not to shoot sparks as that wasted energy in broad spectrum end due to dielectric breakdown. The tesla coil is not exchanging energy efficiently with the enviroment which form part of the capacitor ascociated with the secondary matched oscilator. The media want him to though bolts of lightning into the air as spectical but it is not the purpose of the device. They should be for the wireless transmission of energy which requires the matched resonances of the remote receiving device.

im after them swords now......

I have tried both emails addresses that you send to me, and both say'' not found'' Regards Roger.

@forrestmohrman8768

5 жыл бұрын

On the search tab type in ...............STEVEHV