Very good power module. You can extend output voltage range (no load to full load) by changing R20 to 1.2kOm (low voltage limit ~9V) and VR1 to 4.7kOm (trimmer - high voltage limit ~33V). Under 8V not work stable and breakdown voltage of output capacitors is 35V !!!

Very good power module. You can extend output voltage range (no load to full load) by changing R20 to 1.2kOm (low voltage limit ~9V) and VR1 to 4.7kOm (trimmer - high voltage limit ~33V). Under 8V not work stable and breakdown voltage of output capacitors is 35V !!!

Very good power module. You can extend output voltage range (no load to full load) by changing R20 to 1.2kOm (low voltage limit ~9V) and VR1 to 4.7kOm (trimmer - high voltage limit ~33V). Under 8V not work stable and breakdown voltage of output capacitors is 35V !!!

Very good Power Supply. It work very stable. If you need wide range of output voltage (9V to 33V) - change R40 to 1.2kOm and VR1 to 4.7kOm trimmer . (Attention - you will null warranty after doing this activities)

Very good Power Supply. It work very stable. If you need wide range of output voltage (9V to 33V) - change R40 to 1.2kOm and VR1 to 4.7kOm trimmer . (Attention - you will null warranty after doing this activities)

Very good Power Supply. It work very stable. If you need wide range of output voltage (9V to 33V) - change R40 to 1.2kOm and VR1 to 4.7kOm trimmer . (Attention - you will null warranty after doing this activities)