DSO Shell DSO150 Oscilloscope 1 DSO Shell has similar bandwitch as DSO138 though it contains significant improvements in structure mechanical and operation 2 Display and MCU are now mounted on the same board mainboard to avoid using inter board pin headers Feedback from DSO138 usres have shown that soldering on the pin headers are often problematic for many beginners Analog channel is placed on a separated board which contains most user install parts This brings in better separation between analog and digital circuits Without the analog portion the mainboard is actually a general purpose control board that can be used in many other applications The mainboard is fully installed except a few through hold components and factory tested before packing 3 DSO Shell comes with full enclosure The front panel and top bottom brackets are flexiable for easy user modification 4 Rotary encoder has been added It makes parameter adjustment much quicker and easier 5 The sensitivity of DSO Shell has been extended in both directions and is higher and wider than DSO138 It reaches 5mV div 20V div while DSO138 is only 10mV div 5V div 6 DSO Shell runs on 9V do not use power voltage higher than 10V power supply Users need to prepare their own power supply since it is not included in the kits The power jack on the mainboard accepts standare 5 5mm 2 1mm DC plug Alternative 2 pin connector 0 1 pitch is also provided for convenience to connect to different power so