![Two pieces of ancient, unetched phenolic circuit board [4032x3024 - 771KB]](https://pic8.co/sh/zGA0U4.jpg){kind=link}
Important to learn these old techniques. I have this feeling that we will be revisiting them.
Important to learn these old techniques. I have this feeling that we will be revisiting them.
This board is stamped "T" as the factory that made it also made Textolite, i.e. resin impregnated fabric that formed hardboard material.
Manufactured at GE Coshocton (Ohio,) probably before 1985.
This board is stamped "T" as the factory that made it also made Textolite, i.e. resin impregnated fabric that formed hardboard material.
Manufactured at GE Coshocton (Ohio,) probably before 1985.
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