This reminds me a bit of Multiwire, a somewhat unusual circuit manufacturing technique from the 1980s. A machine laid down wires and then encased them in resin

This reminds me a bit of Multiwire, a somewhat unusual circuit manufacturing technique from the 1980s. A machine laid down wires and then encased them in resin. The best info I can find is this slide deck: https://www.swtest.org/swtw_library/2013proc/PDF/SWTW13-22.pdf https://www.swtest.org/swtw_library/2013proc/PDF/SWTW13-22.p... I believe this technique was used in the Three Rivers PERQ computers. Here is an image of one of their PCBs https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgBgQ_n9suBbNh1KBbE6BEcSBLzh27yzWLwC2Jj_kaglskEm4kxB2upfKn1dv9RlFEZoy-HXmiX6WywgDi_tbMLOKHYiuIfrNDBqvOTu298fJXWw47DF-N-jxztG178dNZTxBO097e8oLE/s1600/HPIM0012.JPG https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEg...