Nice job. I’m about to convert my AC buzz box to DC and had been trying to find some videos specifically about making an inductor like this. I have some 100 amp apc transformers and may modify one and see how it works. Also maybe add a capacitor. Thanks for the video
1000W HID ballast power supply transformer maybe? That's what I've been thinking about using or maybe stacking two 1,000 watt or larger microwave oven transformers. Do you have an LCR meter to measure the inductance of your successful transformer inductor and if so, what is your value?
i was looking for someone who has tried converting a buzz box. I am in the process of converting an old craftsman with a variable shunt transformer. i will add a 400A FWBR use a 4300 microfarad 600V electrolytic cap with a 150 ohm 2W bleeder. for the inductor filter I'm using two microwave cores (E's only) butted together with twenty turns of three 10 ga insluated stranded wire in parallel with a .045 gap (9 x .005 kraft paper) between the cores to keep the DC current from saturating the core flux (measures 20 microhenries.) Core cross section is ~1.75 x 2.5 . butted the E's to get a longer window(for more turns) and a longer magnetic path length to increase the induction. if needed i will add a second cap to create a Pi filter. suspect that your inductor is saturating and you need to add an air gap in the core to stop core DC saturation so the AC flux can do its thing.
The length that was used up on the core was probably less than 15 feet. It appears to be 1/0. I already had the wire, it was just a very long electrode holder lead.
AWESOME VIDEO ! sorry you had to go through so many issues..i'm thinking of doing the same thing to my AIRCO 225 amp welder..question, where did you connect the two leads that you raped on the smoothing choke ? any pictures.. thanks.
I have been running 7018 on my lincoln cracker box since I bought it in 1975 and have had no problem 7018 has been an ac or dc rod since it was invented, you just need to learn how to weld
I feel you. But all ac welders want weld 7018 my friends ac 225 Chicago electric would not hold an arc. I'm a 28 years experienced shipyard production welder.
