Today arrived my power supply, that bought few days ago. It was a good occasion to buy almost not used device in half of current price. The device is in the condition as described by the previous owner. It still has a product seal. After disassembling the cover, there was a bit of dust, but everything looked fine. I just cleaned it with compressed air.
I have performed quick tests, and it looks like everything works properly. The regulated fan is very silent, especially if I compare it to the SDS824X HD scope, which is a bit noisy. Below a measurement from OFF-ON and OFF-ON transitions with a connected load 51.1 Ohm resistor. The power supply was set to 8V and 40mA.
