But there are probably plenty of cases where the 888 performs better than the 951.
I actually meant that to be in specific cherry picked testing, not in actual practice.
I mean if the roles were reversed, it would be rather easy to make graphs to show where the 888 beats the 951 in very, very specific things (like where thermal mass would be the dominating factor).
FWIW, the 888 has 17% more power than the 936. And T18 tips have significantly better performance than 900M.
speed of tip changes on the fly, warm up times and thermal recovery are worlds different,
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what is your test for this and how does that relate to soldering? (rhetorical. Not asking for actual answer) For me, I use the most efficient tip for the job and set the temp where I can do it at my fastest rate with no waiting on the iron. And if this set temp is such that I can leave the iron on all day and night, then there's no problem with thermal recovery. Would it be nice if I use the same temp to solder ground planes with a BR tip? Heck yeah. Wake me up when a non RF cartridge tip can do that. And to be thorough, there is more than one way to do that. If you can make a BR tip that you can leave at 375C 8 hrs a day which wets without cleaning and lasts 10 years, then that works, too. I'll give that a gold star.
There is no case that I ran into that the 936 performs better than the 951.
heat up time granted. tip change granted. As stated at the top, I do not expect a practical advantage of the 888. But I wonder in what way the 951 outperformed the 936, if any, and by what criteria. I'm talking about the "oh, the 951 is BETTER at soldering to multilayer ground planes with teensy tips." If BETTER means you only have to temporarily turn it up to 360 vs 370, then I don't see the practical difference.
If I am going to state X is better than Y in a practical way, I will be able to demonstrate it with specific practical situation that I have encountered, if not actual measurements in a contrived test setup. I'm sure peoples' needs are not all the same, but in my usage, I have found I need to run these stations at more or less the same set temps to do the same things. And in any case, this set temp is well below the temp where I would need to worry about oxidation or anything else. Like many tens of degrees below "who cares?" And the T12 doesn't do anything particularly better that I have come across which I can point to.
This from a position of consistently doing some batch pcb soldering and forcing myself to use the t12 station for over 2 months. As well as any other soldering I needed. Advantage, nil. I missed nothing going back to 888, and the 888 has several advantages for me, specifically.
There are many reasons why all the major manufacturers are pursuing this cartridge thing besides performance.* Aside from the ability to use smaller thermal mass tips to increase warm-up time and hot swapping of tips, the performance benefits are not necessarily that obvious to me.
*Keeping up with the Jones's regarding marketing. Locking in customers to your ecosystem. And as Pace rep said, in the ADS thread, one of the goals is to reduce the cost of entry on the station and make it up in the margin on the cartridges. Inkjet printer model. The money is in the consumables, in the long run. Making a machine that works and lasts forever with little maintenance is bad for business. Goodbye 888 and the like; hello future. When the marketers and shills are done with the internet, it will be heresy to remember how well these things worked without adding the requisite modifiers "for the time," "reasonably well," "considering the
technology."