2 layers158.8 × 159.8 mm

Boards in 3 GitHub repositories, designed in KiCad, that use the SN7406N by Texas Instruments (0℃~+70℃ 1 23ns@5V,15pF 250uA 2V 30V 4.75V~5.25V 40mA 6 700mV 7400 Series 800mV DIP-14 Inverters ROHS). See how each wires it, with its parts, size, README and files; the SN7406N’s symbol, footprint and pinout are on its own page.



ForgottenMachines/Entrex
The technologies documented here will include all like-kind systems manufactured by Nixdorf, Redifon, ROCC & Mera, all originally designed by Entrex Inc, Burlington, MA USA.