5 filar specs

[Prinsloo]

Hi Robert

My coils spec is the same as yours, 5 wires litz, 45 meters with 19 AWG wire and a 20 mm core, I got some lower value resistors today and will do a test as soon as I can, just don’t want to pop the MJL’s.

I was a bit concerned as most builders mentioned base resistors of 470, 200 ohm etc. and the like, my wheel don’t even move at 100 ohm base resistors.

Please explained “Did you double check for any high resistance connections? “,

Thanks

Theuns (Virus)

[Robert Darrah]

Hi Theuns,

On the first run charging 1 battery the primary draw was 1.3 amps. On the second run I was charging 2 batteries and it was 1.26 amps. I have four 10 ohm resistors, 1 for each of the transistors, plus one 80 ohm resistor (in place of the pot) in series with the four 10 ohm resistors, so basically a total of 90 ohms. The second run took 20 3/4 hours to charge both batteries (2 lawn and garden), and my rpms were around 307.

The 90 ohms is working well for me and I have 19 gauge trigger wire also, 150'. How long is your trigger wind? Did you double check for any high resistance connections? It sounds like you have a higher trigger resistance than I do for some reason. If all your connections look good then maybe you need a larger trigger wire.

Cheers,

Robert

[Prinsloo]

[Tom C]

how do you get more voltage thru the trigger branches? change all the resistors to the bases. any time you add a coil you will have to adjust the trigger tuning.
Tom C

[Prinsloo]

[Tom C]

Hi,

A quick update on the 5 filar. I discharged the lawn and garden to 12.20 volts and then charged it up. It took 9 hours and 47 minutes to get up to 14.50 volts, so I think I'll need 2 l&g batteries for charging to stay near the c20 rate. 19.5 hours to charge will sure speed up the load testing.

Robert

hi everyone,

Just want to chime in here. we dont CARE about current on the secondary. we car about CHARGING. 2 different things, we are not charging with current on the SG but voltage potential, so we are looking for how well it charges based on primary draw, and RPM. it is non linear, there will be places in the current draw from the primary where you see non linear increases in rpm of the wheel. this is usually where it drops form 3 to 2 pulses or from 2 to 1 pulse, it is a non linear increase in wheel speed as you drop in resistance on the trigger circuit.

Tom C

[Prinsloo]

@ Robert

Nice build, good work !

What was your amp reading while charging your batteries in 9 Hours?

Also what value is the resistors on the trigger wire?

Thanks

Theuns

[Robert Darrah]

Hi,

A quick update on the 5 filar. I discharged the lawn and garden to 12.20 volts and then charged it up. It took 9 hours and 47 minutes to get up to 14.50 volts, so I think I'll need 2 l&g batteries for charging to stay near the c20 rate. 19.5 hours to charge will sure speed up the load testing.

Robert

[Robert Darrah]

Hi Woody,

Are you planning on litzing your coil? If you are let us know how it works out because I'd like to see a comparison between litzed and nonlitzed coils. I haven't seen anybody talking much about the benefits of one versus the other (subtle hint there.)

Sorry about the meltdown with the 3pm. But if you're going to melt something that's not a bad choice, as that kit already has a number of flaws that needed reworking. Now you can study the components and see what failed so you know what needs to be scaled up for you next attempt at 36v, because I got a feeling it's coming!

Robert

PS Hey, you inspired me to put in a tag line:

"Mother said there'd be days like this...she just didn't say there'd be so many!"

[Woody]

Nice looking build there Robert! I am waiting for my matched transistors to arrive, and I've marked out 150 feet on my driveway so I can wind a new coil with the 18awg/19awg wire. I'm thinking about a 5 filar coil too, and I intend to use it as the master coil for my 6 coiler like Ralph showed at the last conference. I've been getting stuff together for that build.

-Woody

[Robert Darrah]

Hi Mr. Ronsen,

Wow, looking at your numbers I can feel your pain, but then I'll bet you never super glued your big toe to your ssg wheel... another story... and maybe one best not told.

My ssg was charging around 37 milliamps with a primary draw of 115ma and over 140rpms. When I looked in the reports for other people on the mp3 group a lot of them had better charging rates and rpms than that, so I'd put 37 ma at the low end of what's possible with the ssg.

So if you're only charging 10 ma that sounds way too low to me. Have you looked at it on a scope to make sure your base resistance isn't too high? Are you getting extra trigger spikes in your h wave? I'd suggest looking at the tuning again and seeing if you can't get more charging out of it.

10ma on a 7ah battery... that's about 7 times as much charging as I was doing... so I'm guessing right now it takes 280+ hours to charge? Something like that? I'd suggest getting your charge rate up a bunch and use a new battery with a c20 rating that matches what your machine is putting out, and then do your testing.

Good Luck!

Robert

[Michael Luton]

Mr Ronson,
Unfortunately you are correct in thinking too few will get there. The biggest problem is people want to jump to a high end charging machine and get discouraged. The vanilla SSG is kept simple to be a learning machine and for that it is a great machine. If you complicate before you start to understand what is going on you never will get it. Learn from it then you can and will build the better machines and understand what improvements are and which you want to pursue.

Michael Luton

[Tom C]

@Robert Darrah
i am not alone..
i have a single coil vanilla SSG running... charging 7Ah batteries,
it takes long.. more than 40 hours...
now i am charging to 7Ah (connected in serie) and watch what happens.. might i charge two in same time as one battery,
but all that testing takes tooooo long..
do/would realy very brand new battery work so much better *hmmm*..
now i have a 64Ah battery (varta 12V L2 400/640 A(EN)) as primary, getting rid of charging the primary so often..
the consumption of my wheel is 60mA, charging is 10mA,... i have 850windings of #26/#23 wires, 16 mags on wheel, 80RPM,
so i will go up to AWG18 diam 1mm wire, building a new coil,
working on 24V would speed up too, ok i read quality of rotation first, then speed,...

but in the actual style of teaching/learning that technique..
there will be no danger for established industry.. no revolution..
many people would like to see charging two or more batteries from one...
but.. how many people reached that point realy?

I did, can, do.... will do more than 2 for 1
Tom C

[MrRonsen]

@Robert Darrah
i am not alone..
i have a single coil vanilla SSG running... charging 7Ah batteries,
it takes long.. more than 40 hours...
now i am charging to 7Ah (connected in serie) and watch what happens.. might i charge two in same time as one battery,
but all that testing takes tooooo long..
do/would realy very brand new battery work so much better *hmmm*..
now i have a 64Ah battery (varta 12V L2 400/640 A(EN)) as primary, getting rid of charging the primary so often..
the consumption of my wheel is 60mA, charging is 10mA,... i have 850windings of #26/#23 wires, 16 mags on wheel, 80RPM,
so i will go up to AWG18 diam 1mm wire, building a new coil,
working on 24V would speed up too, ok i read quality of rotation first, then speed,...

but in the actual style of teaching/learning that technique..
there will be no danger for established industry.. no revolution..
many people would like to see charging two or more batteries from one...
but.. how many people reached that point realy?

[Robert Darrah]

Hi Bud,

Yes, I've already charged up the battery once and the best part is it didn't take that long. When I did my 20 runs with the ssg it would take 40+ hours for each charge, so it seemed to take forever. I think the best thing to do to take some of the pain out of the load testing is to get a battery that is sized to match what the machine is putting out, so it only takes around 20 hours to charge.

I just looked at my 20 run data and it took me 3 months to do the tests. 90 days just for 20 tests! That's where I really screwed up. I started with a garden battery and it would have taken probably a year to charge, so I then went to a 4.5ah battery. It took way too long to charge also, so I ordered a 3ah battery online. It came and was actually 3.4ah, but it was there so I used it anyway despite the long charge time. I went with it when I should have probably got about a 2ah instead.

When it takes 3 months just to do some basic testing I can see how people give up and walk away. I'm not pointing the finger at anybody; it was just my inexperience that made it take so long. Now that I know better I'd like to pass that lesson along to new people.

Also I think what would help with the new kits is to specify more precisely what battery size people should use to speed up their load tests. I think the new kits are going to rock big time, and it will be possible to specify what size battery for a c20 rate. The more painless the load testing is the more likely people are to do it. My 2 cents.

Cheers Bud, and keep up the good work!

Robert