sdl4 - TPC was normally called Electrolytic Tough Pitch (copper), which is motor / magnet wire. The others are more refined in their impurity, crystal and surface parameters. There is a case to be made that ETP is good enough as long as the other parameters are executed with care. I would have to be convinced due to my personal experience - but it is practically impossible to sort out all the various components of what makes a wire 'better'. My present Iconoclast sample is ETP/TPC.
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- 13557 posts total
- 13557 posts total