Development of the saturation current meter in its normal form is completed - on an industrial PCB, in a more compact and accurate layout. The current-sensing resistors are now made in two (and not three, as previously) ranges - 20 mOhm and 1 ohm. Switching between the ranges is carried out by a button and indicated by a red LED.

Schematic file for the project can be found here, pcb - here.