SALE (AU/NZ): Multicomp Pro MP710086 (Owon P4305 rebadge) at element14

[EvgenyG]

Looks like they are selling quite a few other PSUs as well.
Any thoughts on this one? https://au.element14.com/gw-instek/gps-3303/power-supply-3-o-p-3a-30v-fix/dp/274852202
Seems like a very good deal.

[dietert1]

Yes, it's a good deal if you prefer a three channel supply. As i wrote above, we got two of those programmable OWON supplies for about that money. A nice programmable three channel supply seems to be the Siglent SPD3303C, currently on offer at ebay for about € 350 with USB and 440 with ethernet.

Regards, Dieter

[plurn]

Looks like they are selling quite a few other PSUs as well.
Any thoughts on this one? https://au.element14.com/gw-instek/gps-3303/power-supply-3-o-p-3a-30v-fix/dp/274852202
Seems like a very good deal.

Yeah that is a bargain. Original price $737.07 ($810.78 Inc. GST) down to $256.23 ($281.85 Inc. GST) and possibly less if you can get the 15% discount to work. From what I can gather gw-instek seems to be well respected for power supplies and has been around a long time. In terms of reliability and quality of power supply output (low electrical noise, etc) I would expect it to be good. Perhaps a little lacking in features though not everyone needs lots of features.

If you are interested in it, perhaps check the manual and some reviews. I'd want to know if it had good controls and was easy to set voltage and current.  Sometimes power supplies with a single voltage knob and single amp knob per channel can be tricky to set precisely (if that is important to you). Some models have course and fine knobs to make it easier to set. Some have for example a single voltage knob but it can be pressed for course or fine (so it is a digital control rather than analogue). Don't know what the set up is for this model.

This model does not seem to have a lot of precision in read back if that is important to you. So only 2 decimal places for amps.

Then again, even if it is missing features and is difficult to set - it is still a bargain. Can't go wrong at that price.

[Psi]

I have that one (GWinstek GPS-3303).
Got it for NZ$200 secondhand.

The only thing I don't like about it is the update rate for the LED display, it's around 500ms and feels a bit laggy when you just want to change the voltage immediately.
Probably be fine if it was 250ms but 500ms feels a bit annoying. You move the knob and have to wait up to 500ms to see what the voltage is.

[5U4GB]

One thing I liked about the Multiwon was the more extensive display capability, you're getting all the information you need at once on the display.  It's also convenient for keeping an eye on smoke-about-to-escape issues when the line on the current graph has been slowly creeping upwards for the past few minutes.

[EvgenyG]

If you are interested in it, perhaps check the manual and some reviews. I'd want to know if it had good controls and was easy to set voltage and current.  Sometimes power supplies with a single voltage knob and single amp knob per channel can be tricky to set precisely (if that is important to you).

Looks like it has 1 turn potentiometers which means coarse setting for Voltage/Amps. I was thinking about upgrading from TENMA but now I'm thnking, even though the build quality would be much better, the digital V control and the ability to lock front panel is very important to me.
The analog pot with 10 deg per volt setting is too coarse, one silly mistake and magic smoke comes out your DUT Price is a bargain though.