Labels Milestones
Back- Current design uses six IDC 2×8 connectors with 4 positions D Switch, single pole normally-open tactile switch D reed switch, default-closed D SPDT reed switch K switch normally-open pushbutton push-button Lamp D Push button switch OFF-(ON CMOS General Purpose Timer, 555 compatible, PDIP-8 Quad operational amplifier, DIP-14"/>