### Author Topic: Theory - Coil Calculations to Restrict Amps (CONFIRMED)  (Read 27540 times)

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##### Re: Theory - Coil Calculations to Restrict Amps
« Reply #56 on: January 02, 2013, 13:24:25 pm »
''The L1 coil was around 3.4H and the L2 coil was around 2.8H.''
Are you talking about the MOT's secoundary split in 2 sections?If yes in other thread you said you measure the bobin's half and cut it to create equal coils.If you used a diferent value on the negative choke how do you calculated the inductance for it?or  when you cut the  bobin in two you made one half smaller by eye?
You also said you conected them out of phase and in the small drawing you posted it shows in phase,when conected out of phase dont they need to have the output leeads one''start of winding'' and the other''end of winding''?just asking...

''When I connected the 8XA Circuit to the coil and increased the variac to around 50VDC, I would only get a voltage input reading up to 12VDC max!''
Input reading before the chokes ?or after?
Thanks verry much Tony!Cheers!

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##### Re: Theory - Coil Calculations to Restrict Amps
« Reply #57 on: January 03, 2013, 01:37:08 am »
Yea I used a MOT and just cut the wire in the center (eyed it). By eying it I made them unequal, but this actually worked out I guess. Then I connected them out of phase, not like the Stan's 8XA image. I took the voltage measurements before the "blocking diode" and across the cell.

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##### Re: Theory - Coil Calculations to Restrict Amps
« Reply #58 on: January 03, 2013, 07:11:53 am »
If your planning on replicating tony's mot, take some time to experiment using the primary and secondarys without any modifications. I had some good results that way : )

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##### Re: Theory - Coil Calculations to Restrict Amps
« Reply #59 on: January 03, 2013, 12:19:55 pm »
Thanks guys,i made some experiments with an inverted normal transformer,then hook up two coils out of phase and at a freq aprox 1Khz (from the 8xa) in get a voltage increase starting from 125v-250->400->600->0->125->300->500->800->1500->MAX my meeter and producing little gas.If i keep my meeter close to the cell without conecting it is shows some ambigous voltage readings.  I then replaced the normal inverted transformer with a flyback and could not get it to step up the voltage(mainly because i canot find HV gnd and used the frame as a gnd).When I conected the inverted transformer again the same as before i could get a little more production but no step up,I dont know why did not work the secound time...I have a pc scope so i canot put the leads over the wfc at resonance and i wound 1turn of wire over the flyback core of the two chokes so i can get a feedback,and the freq was 2.3Khz see att.Cheers!