Switch circuit breadboard prototype.      

  Use tape to attach conductive thread to the positive and negative terminals of a 3V coin cell battery to power up a thru hole LED.      

  I keep my workbench organized by using a 800 pin breadboard as my electronic pin cushion. Electronics never looked so good.        

  A detailed image of a 10mm light emitting diode.      

  5mm Blue Light Emitting Diode with a clear lens from electron.com  

  1,8mm orange the-hole light emitting diode from electron.com    

  100 5mm Blue Lens Thru Hole LEDs from czb6721960 shop on eBay for $3.30 USD. item #160992146984   Comparison of 5mm and 3mm Light Emitting Diodes.            

  I’ve been making slow and steady progress on the latest project.     which also means I’m eating lunch in front of my computer.