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Electronics Repair (sci.electronics.repair) Discussion of repairing electronic equipment. Topics include requests for assistance, where to obtain servicing information and parts, techniques for diagnosis and repair, and annecdotes about success, failures and problems. |
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brushless alternator?
Don't get all defensive now. Oil filled caps have been around since the, well, before I was born and they just don't die - and I've tried. Got a few in my unreg choke input filter HV supply from the 40's still going strong. Some AC motor run caps look like oil filled types bur are dry and a lot less permanent, and lighter weight - like one sees in microwave ovens. I'm guessing you might have one of those. Crimped drawn metal, aluminum case, with a plastic insulator - no elastomer seal, no porcelain turret connectors and a quick connect, push on connector. Looks similar to the old oil dielectric caps, but a lot more capacity and a lot less rugged. Cap could be all the problem . . . but a 50 uf cap would suggest it is just there for sine wave smoothing and not a necessary generator part - but I don't know what your load looks like to the gen either. Try changing the cap with a new one - that may be all that's wrong. Sorry, I just get a bit irked by all the knee jerk reactions implying that I'm some sort of idiot, I've been around here for a long time and know how to properly test components. It may well be a dry cap, I just assumed it was oil filled because it's metal, has a soldered closed hole in the end, and says "No PCBs" on it. I also noticed tonight that it says "Protected" on the end which I assume means it's internally fused. I'll cut it open later to find out what's inside. At any rate I ordered a new cap, it was only $1.75 from a surplus outfit and I needed some other stuff anyway. If installing that doesn't fix the problem I'll dig deeper. |
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