Bedini SG

[Aaron]

pdf availability

Hi Steve, I don't have it easily accessible. I uploaded it and may have just changed its name so the link wouldn't work anymore. If I come across it, I can repost it.

[dambit]

Hi Aaron,

Thanks for checking. No worries.

Cheers,

Steve

[BinzerBob]

Air Coil

I was making a new SSG coil the other day. Before I put the iron rods into it, I decided to try the air core on the Bedini SSG Motor setup I have.

When I plugged it in, it started drawing current from the source battery and sending current to the charging battery. I thought I hooked it up wrong... But no.

The system self oscillates without the motor turning at all. The frequency is about 7 kHz but I can adjust it down by making the adjustable pot less resistance (7 khz is obtained at about 2 k ohms). The lower the resistance the greater the draw in current and the lower the frequency.

Can anyone point me to the proper/thread on this site about what I am experiencing?

Now I don't even need the rotor part of the motor.... it is just the coil and ssg circuit. I am not using any triggering circuits. It is the basic SSG circuit the exact same one I use on my SSG motor.

BTW.. I am using AWG20 and AWG24 number of turns are about 300 or so, I decided not to count them when I was making this coil. My main goal was to keep a certain geometry... that is not too wide of a coil.

Please let me know.

[dambit]

High level output spikes

Hi All,

Last night I was seeing if my VERY basic sg would have any effect on a 550CCA car battery that isn't holding much charge. (still building my new big unit) Overnight it got the batt up to about 13.18V so I thought I would see if a 24V input would help matters. After I had re-tuned for that voltage I measured the output spikes on the scope and instead of the usual 200 to 230V spikes, I am now getting 400V spikes.

Specs: Coil is approx 600 to 700 turns, bifilar - everything else is as basic setup, transistor is 3055 type.

Spikes this high are a first for me, not even on my 8 circuit charger I don't get them (uses MJL21194's), and it runs on 24V. I must say I'm a little confused

The only thing I can think of is that I built an identical basic circuit to the older one I have so that.... well no reason really. I had the parts The only difference is my soldering. It's much cleaner on the new one. Maybe the old 3055 was just rubbish? Who knows.

Cheers,

Steve

[BinzerBob]

400v voltage spikes

Hi All,

Last night I was seeing if my VERY basic sg would have any effect on a 550CCA car battery that isn't holding much charge. (still building my new big unit) Overnight it got the batt up to about 13.18V so I thought I would see if a 24V input would help matters. After I had re-tuned for that voltage I measured the output spikes on the scope and instead of the usual 200 to 230V spikes, I am now getting 400V spikes.

Specs: Coil is approx 600 to 700 turns, bifilar - everything else is as basic setup, transistor is 3055 type.

Spikes this high are a first for me, not even on my 8 circuit charger I don't get them (uses MJL21194's), and it runs on 24V. I must say I'm a little confused



The only thing I can think of is that I built an identical basic circuit to the older one I have so that.... well no reason really. I had the parts The only difference is my soldering. It's much cleaner on the new one. Maybe the old 3055 was just rubbish? Who knows.

Cheers,

Steve

Hi Dambit:

With your scope take a look at the older circuit and the newer one while running. Maybe you are right about the 3055 transistor, maybe the reaction time of the first circuit built is much slower than the second circuit. If you use a scope maybe you can see how fast each transistor turns off. The faster the transistor turns off the greater the spike should be. Of coarse there is also the number of turns of the coil that matter too.

If you do the test, I believe you need to use the same coil for each Bedini circuit ... just to keep a control and so that you are just looking at the reaction of the circuit and not the coil.....

In other words...If the old circuit with the new coil setup produces 400 v then it is likely due to the new coil.

regards.

[Druide]

Connecting coils together

Hi everybody !

I've just finished winding a trifilar coil, 500 feet 22 AWG + 2 X 20 AWG litzed, 1023 turns. I will run this coil with two transistors MJ15024. I would like to use my first bifilar coil, 350 feet 20 AWG litzed, 760 turns, with the new one. I've thaught of connecting each 500 feet 20 AWG in series with the two 350 feet and position the coils 180 degrees from each other.

Do you think it's a good idea or should the trigger coil be the same lenght as the power coils ?

Thanks !

Michel

[Pcurrius]

units conversion

Hello

I've been surfing and I don't find the conversion of gates (thickness) to inches or centimeters. I would please that anyone could give me the conversion. Thanks

[dambit]

Hi Binzer,

Arghhh, I'm so annoyed. I was testing/ comparing both the old and new circuit (one after the other) and fried both. Within 1 min of each other.

So I can't do a comparison with the old one, but I put another together to the same specs and used the same coil, and it also puts out 400V spikes. So I think now that the old transistor was a bit dodgy, so to speak. It still worked, but not as efficiently I guess.

Cheers,

Steve

[selamatg]

converter software

Hi All,

Here is the link for converter software....

http://www.4shared.com/file/62456701/4582e72/CONVERTER.html

Selamatg

[Pcurrius]

thanks

Hi All,

Here is the link for converter software....

4shared.com - online file sharing and storage - download CONVERTER.rar

Selamatg

Hello,
that's very useful! thanks. But do you know what does it mean #23 gate? Because I don't find it anywhere even in the program that you give.

[selamatg]

Sorry...I not understand......with #23 gate..

Are you talk about AWG #23? (American Wire Gauge) size

if you talk about AWG here the link

American wire gauge - Wikipedia, the free encyclopedia

[Pcurrius]

Awg

Sorry...I not understand......with #23 gate..

Are you talk about AWG #23? (American Wire Gauge) size

if you talk about AWG here the link

American wire gauge - Wikipedia, the free encyclopedia

Thanks you much for your ilumination and deduction that's exactly what I was looking for.

[Guruji]

multicoil

Hi guys today I hooked another coil with another transistor.
The thing is that when I disconnected the charge battery only the second transistor neon lit up.
I have to say that on the primary coil it's trifilar.One is trigger and the other two in parallel.It's not a big load on the first transistor cause one of the coils is thin.
Maybe I should do diodes to every coil in parallel on primary coil?
Thanks.

[tjnlsn255]

confirmation of coil ends?

Hi,

I just finished my first SSG and am having trouble getting it to work.

I have used 20 and 24 g wire bifiler coil around 700 turns. I am using a 2n3055 transistor.

My rotor is a 4" pvc pipe with 4 north facing ceramic magnets (3"x2"x1").

When I have everything hooked up and spin the rotor it free wheels a few times and then stops but the small light bulb on the trigger circuit never lights up.

Could some one please confirm that the Finishing End (top) of the trigger coil goes to the negative end of the primary battery and the Starting end (bottom) of the Power coil goes to the Plus end of the primary battery?

Also, when I disconnect the charge battery the Neon light does not light up?

My primary and charge battery are 7 ah batteries one has 12.4 v and the other has 12.1 v... the SSG acts the same regardless of which battery is charge or primary.

Any and all thoughts are greatly accepted......

If this forum is not the right place to talk about debugging the SSG could someone please PM me and point me in the right direction?

I may be able to get some pictures to post if that would help....

Thank you....



Todd

[ren]

Todd to confirm you have the correct polarity just hook both ends of the power coil to the battery and see if the magnet is repelled or attracted. When it is repelled, the lead that goes to the positive stays there.

What resistance are you running on your base?