File:Topre PCBs (front) - FR-2 Paper Phenol and FR-4 Glass Epoxy.JPG

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English: Contact side view of two PCBs taken from separate Topre keyboards. The one on the left is a paper phenol type, and the one on the right is a glass epoxy type. It's suspected that Topre only use the glass epoxy type for their modern keyboards.
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Source Deskthority (direct link)
Author 002
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(Reusing this file)		 Public domain or nearest equivalent

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Public domain This work has been released into the public domain by its author, 002. This applies worldwide.
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current20:15, 13 February 2022Thumbnail for version as of 20:15, 13 February 20222,184 × 1,456 (881 KB)DigitalIceAge (talk | contribs){{Information | Description={{en|Contact side view of two PCBs taken from separate Topre keyboards. The one on the left is a paper phenol type, and the one on the right is a glass epoxy type. It's suspected that Topre only use the glass epoxy type for their modern keyboards.}} | Source=[https://deskthority.net/wiki/File:Topre_PCBs_%28front%29_-_FR-2_Paper_Phenol_and_FR-4_Glass_Epoxy.JPG Deskthority] ([https://deskthority.net/wiki/images/b/bd/Topre_PCBs_%28front%29_-_FR-2_Paper_Phenol_and_FR-4...

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