OP
OP
actually the g07 coil isn't even close to the inductance of the k4900/k4600 as the g07 is 72uh-211uh and the k4600/k4900 is 62uh-359uh so the WG ending -003 for the k7500 would be much closer as its 50uh - 420uh. go fund me projects are stupid and people should learn how to take some risks themselves and some hard work instead of waiting with their hands out for people donating to their laziness especially when they don't have skin in the game makes them more prone to letting life interfere with production. go fund me should be to help someone having a tough run in life and not for lazy people to expect others to put up all the risk for new products which i will bet there are more projects that never get off the ground and fail or just quit early on to never be seen or heard from again because there is no skin in the game. i have already done all the work on these and simply when i find someone to create the bobbin designs i have and test a couple to fine tune them with 3d printer then i will send them off to be made and i already have the cnc winding machine which i have made the k4600 coils but a different design i have will make production much easier then winding them on their original type of tubes.I was just messing with some of these this past week. Out of like 4 chassis, 2 had coils that could adjust but one of them was all the way at the bottom; while adjusting it, the ferrite core cracked, expanded, and then it got stuck. That is my theory and why it is unlikely you can get one "unstuck".
Anyway, I didn't try this and it is not ideal, but mounting a g07 coil (not exact inductance range but close) off board, like a k4600, could be a less expensive solution.
15k startup plus first run ?? at $25 per coil ..only need to sell 600 of them to be profitable. Yikes. I would probably buy 10 . Does sound like a possible go fund me project (that I don't want to do)
