Tango-PCB Plus (ver 2.30a) Abandonware Accel Technologies, Inc., Tango-PCB Plus is an electronic printed circuit board layout software. It can use drawings made with the "Tango-Schematic" electronic schematic drawing software (also available on this Gopher server). NOTE: Software requires the "TANGOCRK" TSR to be running for it to function (pre-configured with "run.bat").