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| Gandalf_Sr:
--- Quote from: labjr on June 13, 2019, 02:33:03 pm ---Would be interesting if someone designed a controller PCB that had all the bugs worked and used an AC heater supply. There's also Unisolder but it looks too complicated. And they don't offer an assembled PCB. --- End quote --- Why would an AC heater supply be better? My comparison with the big heavy units like the Jabe UD-1200 made me realize that the big units use transformers but that's why they cost so much more; you can't get a 200W 24V transformer for less than $40 on its own. As long as they are properly insulated, wouldn't a 110-240V AC 24V 5A SMPS supply PCB be better? |
| labjr:
--- Quote from: Gandalf_Sr on June 13, 2019, 02:38:54 pm --- Why would an AC heater supply be better? My comparison with the big heavy units like the Jabe UD-1200 made me realize that the big units use transformers but that's why they cost so much more; you can't get a 200W 24V transformer for less than $40 on its own. As long as they are properly insulated, wouldn't a 110-240V AC 24V 5A SMPS supply PCB be better? --- End quote --- Zero crossing switching, reliabilty and simplicity. Transformers aren't that expensive. And you can reuse them too. If there was something out there which I felt was a good design I would build a soldering station. |
| Gandalf_Sr:
I just ordered a second KSGER unit from Banggood, $52 shipped from USA. I will take this one apart and look at the PCB in more detail. |
| exe:
--- Quote from: labjr on June 13, 2019, 02:46:44 pm ---Zero crossing switching, reliabilty and simplicity. --- End quote --- SMPS is everywhere, including expensive gear. There is no need to even design it, an off-the-shelf one will just work. So, I disagree that a classic EI/toroidal transformer would add much value to put a heavy clunky transformer. It's the opposite: it would rise shipping and storage price. Even though I myself use a lot of traditional toroidal transformers and I like them because of the reasons you mentioned. |
| Shock:
Gandalf, while I remember check your Hakko FX-951. It's easy to misinterpret the set temp for calibration offset and end up accidentally neutering the stations performance in config. I was helping a forum member who was having performance issues with a FX-888D, he just came back to confirm it was in fact calibration and tip geometry that solved his issue. So give the manual a good read and check the calibration against your new thermometer at different temps. It's not necessarily going to make the T12 cart a super performer but you might be surprised, most people seem to have no problem with that station for standard soldering. |
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