sci-electronics/geda-gaf Tools for electrical circuit design, schematic capture, simulation, prototyping, and production
sci-electronics/geda-xgsch2pcb xgsch2pcb provides GUI to gsch2pcb command-line tool
sci-electronics/gerbv Gerbv is a viewer for Gerber RS-274X files
sci-electronics/gnucap GNUCap is the GNU Circuit Analysis Package
sci-electronics/gtkwave GTKWave is a fully featured GTK+ based wave viewer
sci-electronics/iverilog Icarus Verilog is a Verilog simulation and synthesis tool
sci-electronics/kicad KiCad GPL PCB suite
sci-electronics/kicad-doc Documentation for the KiCad EDA suite
sci-electronics/kicad-footprints Component footprints for KiCad
sci-electronics/kicad-i18n Internationalization files for the KiCad EDA suite
sci-electronics/kicad-library Schematic symbols and 3D models for KiCad
sci-electronics/libsigrok Sigrok hardware driver library
sci-electronics/libsigrokdecode Sigrok protocol decoding library
sci-electronics/ngspice A mixed level/signal circuit simulator
sci-electronics/pcb Interactive printed circuit board editor
sci-electronics/pulseview Qt based logic analyzer GUI for sigrok
sci-electronics/qucs Quite Universal Circuit Simulator
sci-electronics/saleae-logic Saleae Logic analyzer software
sci-electronics/sigrok-cli Command-line frontend for the Sigrok logic analyzer software
sci-electronics/sigrok-firmware-fx2lafw-bin Open-source firmware for Cypress FX2 based devices
sci-electronics/verilator Verilator is the fastest free Verilog HDL simulator


scientific scientific exheres (core)
medvid Volodymyr Medvid's supplemental repository (third-party)
mrothe mrothe's supplemental repository (dev)