core matt repair

Paul Koning paulkoning at
Wed Jul 21 14:57:44 CDT 2021

> On Jul 21, 2021, at 3:20 PM, Jules Richardson via cctalk <cctalk at> wrote:
> On 7/21/21 9:32 AM, Tom Hunter via cctalk wrote:
>> Hi Jos,
>> Resoldered how?
>> The wires are _very_ thin (I guess 0.1 mm or thinner - think of human hair)
> It's not at all scientific, but I took a photo via a loupe of one of my core boards with a cat hair over the top a couple of years ago, and the wires are about half the width of the cat hair; I think that likely puts them in the region of 0.02mm or thereabouts, with the diameter of the cores being about ten times that.

Wire that size is readily available; I just spent 15 seconds in Google and turned up one that sells "magnet wire" (enamel insulated copper wire) in sizes as small as 0.011 mm.  You'd have to handle that stuff pretty carefully...


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