Reddit reviews uxcell 10 Pcs 2.54mm Pitch 8 Positions 16 Pin Blue DIP Switch 8P
We found 1 Reddit comments about uxcell 10 Pcs 2.54mm Pitch 8 Positions 16 Pin Blue DIP Switch 8P. Here are the top ones, ranked by their Reddit score.
Product Name : DIP Switch;Type : DIP;Features : 8 Positions( 2 Row 16 Pin)Pitch : 2.54mm/0.1'';Non-Switching Rating : 100mA DC 50V;Switching Rating : 25mA DC 24VContact resistance : 50mÎ 24VDC/100mA (at initial);100mÎ typical, 24VDC/100mA (after life test) : 100mÎ typical, 24VDC/100mA (after life test);Total Size : 2.2 x 1 x 1cm / 0.87" x 0.4" x 0.4"(L * W * H)Material : Plastic, Electric Parts;Color : Blue, Gold ToneNet Weight : 16g;Package Content : 10 x DIP Switch
The lower DPST switch is an off-the-shelf power switch with an integrated LED that I will be using for master system power. The row of switches will be a DIP switch initially, to allow you to dial your current in quarter mA increments, although if I could come up with a rotary switch solution I might switch to it.
I have also bought an in-line analog current meter that goes to 3mA that I will use for at least the prototype, but the 'production' one probably won't have it as long as the dip switched CRD's are consistent and reliable.
All credit goes to http://speakwisdom.wordpress.com/2013/04/02/a-very-simple-current-regulated-tdcs-device/ for the idea and the stolen image.
By the way, if anyone is curious, here's my parts list:
Part with Link|# Per assy|cost/ea|cost/assy
:--|:-:|:-:|:-:
10PC New 16A 12V Round Rocker Toggle Switch Green LED SPST For All| 1| $0.69|$0.69
10 Pcs 2.54mm Pitch 8 Positions 16 Pin Blue DIP Switch 8P| 1| $0.54|$0.54
DC 3mA Analog AMP Current Panel Meter Ammeter Gauge 85C1| 1 (optional)| $7.37|$7.37
50PCS J500 Manu:SI/VISHAY Encapsulation:TO-92,Current Regulator Diodes|8|$0.58|$4.64
As you can see from the list, I'm making more than one of these--my whole office heard the Radiolab podcast and as the designated nerd, asked me to Make It So.