Most producers are consistent about the color scheme on breadboard. The blue line on the top in the photo below is the ground (-) rail and the red line is closest to the positive (+) rail. Obviously, check with an ohmmeter if your breadboard is a powered version.
Jack, W8TEE
On Wednesday, May 16, 2018, 9:20:08 AM EDT, N8DAH <Dherron@...> wrote:
yes top rail being GND bottom + Pos sorry I made it in a rush before work. R1 to radiuno power in. -- David