[Elecraft] Toroid Winding Question

[Matthew Murphy Palmer]

Not sure about hand sanding, but i know grinding ferrite is a tricky 
process, I haven been designing flyback transformers of late and grinding 
the gap in ferrite cores has resulted in many cracked and broken cores, i 
would assume if you are meticulous and careful hand sanding is probably ok. 

Matt
KD8DAO 

KBG Luxford writes: 

> With respect to toroid sharp edges, should one rub some "wet and dry" 
> abrasive paper around the edges before winding? 
> 
> How about winding plumbers' pipe thread teflon tape around the core before 
> winding? 
> 
> I am about to resume work on my K2! 
> 
> Happy July 4 
> 
> Kevin
> VK3DAP / ZL2DAP
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