http://www.mouser.com/ds/2/58/BPS-MAR-P ... 247718.pdf
The 1kOhm pot is "upside down"
For the current adjust resistor onto of pot, I was thinking of putting in 3 or 4 resistors and using a 4 position dip switch.
The shunt issue I figured out (I think).
Original BOM - https://www.mouser.ca/ProductDetail/IRC ... bHvw%3d%3d
Mode Electronics sells 36-100-0
So three 0.015ohm shunts in parallel gets me the 0.005ohms. They are cheap, 8 cents each.Electrical Current Rating: 1 Amps Max.
Contact Resistance: 15 mΩ
Max.Insulation Resistance: 1000 MΩ
Min. at 500 VDC
I substituted a few things.
Voltage Regulator: 7812UC in TO200-3 format ST Micro instead ofLM78L12ACZX
The diode I changed, it matches.
LM358n8 On semi, op amp could be the same and probably is the same.
For the connections off the board, I am going to solder in a lot of pads on the pcb and use wire going out.
The small yellow capacitor is hiding under the Vreg.