Ok, just called a couple local places. Looks like I wont be watching anyone do anything for $120/hr. However, one of the gentlemen were nice enough to listen for a moment. Seems my continuity between all bars on the commutator is a good thing, as is the isolation between the bars and the shaft...
BK,
Ok, so I got to tinkering with it again. I cleaned the commutator. All clean between each bar. I have total continuity between all bars on the commutator. I didn't think that was supposed to be the case but I guess so.
Also, between the commutator and the shaft, I have no continuity or no...
BK,
That was an interesting one about grit getting between the comm bars and causing a short.
I hadn't thought of that one but like I said, I'm not an electric motor guy.
But what you described is a very good possibility.
Lots of great suggestions on here.
Thanks
BK,
Thanks for that! Ya, these are cheap armatures out of power tools. I've priced new ones, like $40 each. Certainly not worth my time at all, not to mention the several hours I've already devoted to them.
It's simply the principle of the matter. I just want to know what the problem is. Just...
Thanks for the response.
Didn't think of checking the arrl site.
no, I'm not trying to make a "shorter" 2m antenna. What I meant was, if I'm going to practice with coils/antennas, would the formulas be the same for 2m as they would for hf. That way I can tinker with 20" of wire in the house...
Hi all. I'm looking to tinker with coils for use with vertical antennas in the ham radio HF spectrum.
I currently have a Butternut HF6V vertical that uses coils for changing resonant frequencies on the various bands.
These coils are 1/4"O.D. aluminum tubing.
I purchased a roll of this stuff in...
Hello all. Amongst many other duties, I'm responsible for repairing all power tools for our company. I basically learned by cracking them open and using my head. THis has worked well for several years...until recently.
After working on a Milwaukee portable bandsaw, I fired it up to test it. I...
