Scr

[Mark]

I am having a problem finding the 16RIA80 SCR. I am currently using a 800 volt SCR with only a 30 mA 1gi, part # NTE5548. I am not using a cap yet but thought that my charging rate would go up. I also dont hear any clicking noise that others have said they hear. I'm wonding if the "switch" is always open and not building up any higher voltage or current? I am charging new ACDelco auto batterys and can only get them up to about 12.85 volts. Does anybody no if this SCR will work? I will be trying to put in a cap next but wanted to try using just the SCR first. I'm leary that when I hook up the caps I'll start blowing transistors. I am using MJE 3055's. 300 Feet of 20awg wire (3) and one 26awg trigger, litz wound. I only have 1 transistor hooked up dirrectcly but the other 2 share the same heatsink and power is comming thru them. It made no difference in speed or output if I hooked up the other 2 coil wires to them. I then took the other 2 coil wires and hooked them up in series with a cap and am charging a battery with them also. I will be winding a couple of more coils soon and want to know the best way to use them to get the best output or possibly a self runner. Thanks for anyones help in advance!

[Kingman]

Response back in the Bedini SG Thread

Hi Mark, I posted a partial response for you back in the Bedini SG thread in regards to where to aquire the 16RIA80 Thyristor's. I also meant to tell you that I'm using a MJL21194 as my main transistor for my SSG. My coil is a quad-filer. 3ea.-18 guage for power and charging and 1ea.-24 gauge for trigger. Appox. 300 feet for each wire length.
Coil core is Bedini suggested, mild steel copper coated welding rods. Lincoln 1/16"D.X36" R-60 I think. I cut them down to my coil bobbin length. Something like 4 inches long. Again I'm using the 2N3584 to trigger the 16RIA80 Thyristor SCR of which is triggered by the Opto Coupler. I have a duplicate setup on my proto board that is working. I'm now in the process of building the working model that will go on my SSG by copying what is on my proto board. It is a heck of a lot of soldering and testing as I build this cap pulser. Sephiroth has a heck of a lot more experiance in building this then I do. You can learn a lot from him and ThereMart.
Have Fun,
Stephen

[Mark]

Scr

Thanks for the response Kingman. I just took some additional reading and I do have a little more than 15 volts coming out of the SCR so I guess that it is working just not as well as I had hoped. Need more power! I was thinking that after I wrap my other 3 coils that I can use 1 strand off each for drive and parallel the other 2 and have a total of 8 wires (4 sets of 2 in parallel) to be used for a magneto to recharge the primary. I hope this will work without using a comutator set up. Similar to Bedini's motor/magnito motor in the book but all built into one set up. Im using a plastic bike wheel with tripple stacked magnets. 30 magnets total. 10 positions 3 high. The diamater is about 15 inches or so. Not sure on the speed but the rotor has decsent kenetic energy and will spin for over a minute after power is diconnected. I will also be using the bigger transistors soon to but want to get the set up right before changing over, I've burnt up quite a few transistors messing around. Got a nice homeade board set up though that I can change all 3 transistors in about 3 minutes. Would like to have some of the more experienced people give me a little more insight on my coments, please. Thanks again in advance to anyone and everyone involved in our quest for cheap (definetly not free, I've spent probably a grand already) energy.

[ren]

Hi Mark,

You definately need a cap off that bridge if you dont have one there. Look for an equivalent SCR 800v 16amp. It doesnt have to be that high, I have used 400v 5amp ones too. You can also use HV transistors or Triacs if your clever there.

Look @ the 24v cap pulser thread a page or so back if you need help configuring it.

[Mark]

Hey Ren

Got the cap hooked up now and have 16-17 volts coming off the SCR now but still takes about 24 hrs to charge a 560 CCA car battery from about 12.1 volts to 12.7. I have 2 of these battery that I'm starting to condition now, charge them up and run them down using a 12v bulb. I was hoping to get the charge time down to only a few hours. Any suggestions? I found that using a cap with 15000uf 25v seems to keep the voltage up higher on the SCR then a 10uf 250v. Right now on pulsing all 3 coil windings. Maybe I'll try hooking taking 2 of the pulse wires off again and put them in series again and try the cap and SCR on them. What do you think?

[ren]

16-17v off a large cap isnt too bad at all. What is your dump frequency? Your SCR is definately working if the voltage does t keep rising in the cap. I need some more details of your setup to give you any more info

[Mark]

Dump frequency?, no idea. I dont have a timer hooked up yet. I have a 200ohm resistor and 1n4007 hooked inline to the SCR, nothing else.