Originally posted by txaggie00
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Good to see you are doing well with your machine.
I have been tied up with work and I have not been able to do much.
I finally got my circuit working The wheel spins @10.4 revs/min the cap charges to 82v and discharges every 23 secs The caps are 2 1700 uf cap connected in parallel the SCR is TYN825 the transistors are MJE2955, MJL21193, MJL21194 and it runs nicely
![Big Grin](http://www.energeticforum.com/core/images/smilies/biggrin.png)
I can hardly wait to wind my coils.
I have also purchased 2 17000 uf 75v caps they should arrive in 2 weeks.
How did you wind your coils? and What are the size of your magnets?
When I first joined this list I was trying to find out what size magnets I should have for my 4' wheel and the specs on the coils.
I have now the Specs of the coils But I have never seen JB's Machine and do not know what size his magnets are.
I feel that the magnets in my machine will not be big enough for the big coils
The connections on the battery
I made up a cap pulsing segment to try out and found various things.
I have found that when I use large alligator type clips sometimes they do not connect properly and because of this the SCR does not switch off and therefore acts like it's not even in the circuit, also sometimes because there is not a proper connection the SCR does not trigger and the volts keep rising.
When I push hard on the battery connectors and twist them so there is a good connection then the SCR works correctly. Even when I had a screw terminal with the wire attached if it did not make a good connection it would spark once and not again, the cap would either not fire again or the SCR seemed to be open and the current was continually pulsing directly to the battery as if the SCR was not there.
Battery voltage
I have also found that the charge battery voltage if it is too low makes a difference and the SCR does not work correctly until the voltage comes up a bit. So using batteries in series worked better (higher voltage)
Cap not discharging quick enough
Also I have used this same cap pulsar segment on my 6 coiler and found that the voltage seems to raise up to switch the SCR then the voltage does not come down quick enough so that the SCR switches off
Also I used the 1700 uf cap worked but when I connected 2 in parallel worked better.
Kindest regards Kogs
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