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Re: [TCML] MOT wire question



Brian Hall wrote:
I've got a couple of MOTs and there is this 'middle' fabric coverered wire tucked in for a turn or two just under the secondary.  Its what hooked into the MOC and magnetron.

I see that the output for the secondary is there but just unused.

That's to run the filament of the tube. On a Microwave oven magnetron, the anode is positive, and the cathode is at a negative voltage relative to the chassis.



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