Packing, AGAIN was very minimal, but the package arrived safely and undamaged. Its a very nicely produced power supply. The output meter is quite accurate and the ten turn pot that is built in is fine. Its also right next to the positive output terminal so a chance of a BIG shock is always present, so be careful when wiring that there isnt any stray wire strands sticking out. The extra external pot that is supplied, is a nasty little 300 degree 1/8 watt unit that I guess will work. 3 positive, and 3 negative output terminals is unnessesary!!, but I suppose some users may require that. The output is DC of sorts!! see pics, but the switching noise makes it more of a white noise generator than DC. Again for digital work it might be OK. My cheap oscilloscope had real difficulty even triggering correctly. The waveform looks and sounds like a CD, or digital audio. I only need 100 mA maximum, not 1.8 amps, but its the cheapest variable power supply I could find that reaches 300 volts ( plus noise ). BUT, for $50 it was hard not to try. I will look at some low pass filters to try and make it usable.

Packing, AGAIN was very minimal, but the package arrived safely and undamaged. Its a very nicely produced power supply. The output meter is quite accurate and the ten turn pot that is built in is fine. Its also right next to the positive output terminal so a chance of a BIG shock is always present, so be careful when wiring that there isnt any stray wire strands sticking out. The extra external pot that is supplied, is a nasty little 300 degree 1/8 watt unit that I guess will work. 3 positive, and 3 negative output terminals is unnessesary!!, but I suppose some users may require that. The output is DC of sorts!! see pics, but the switching noise makes it more of a white noise generator than DC. Again for digital work it might be OK. My cheap oscilloscope had real difficulty even triggering correctly. The waveform looks and sounds like a CD, or digital audio. I only need 100 mA maximum, not 1.8 amps, but its the cheapest variable power supply I could find that reaches 300 volts ( plus noise ). BUT, for $50 it was hard not to try. I will look at some low pass filters to try and make it usable.

Packing, AGAIN was very minimal, but the package arrived safely and undamaged. Its a very nicely produced power supply. The output meter is quite accurate and the ten turn pot that is built in is fine. Its also right next to the positive output terminal so a chance of a BIG shock is always present, so be careful when wiring that there isnt any stray wire strands sticking out. The extra external pot that is supplied, is a nasty little 300 degree 1/8 watt unit that I guess will work. 3 positive, and 3 negative output terminals is unnessesary!!, but I suppose some users may require that. The output is DC of sorts!! see pics, but the switching noise makes it more of a white noise generator than DC. Again for digital work it might be OK. My cheap oscilloscope had real difficulty even triggering correctly. The waveform looks and sounds like a CD, or digital audio. I only need 100 mA maximum, not 1.8 amps, but its the cheapest variable power supply I could find that reaches 300 volts ( plus noise ). BUT, for $50 it was hard not to try. I will look at some low pass filters to try and make it usable.

Very good power supply for the price

Very good power supply for the price

Very good power supply for the price