So… plugging the mantle into a temp controller would cut the stir bar anytime the heat was cut.
Which won’t work.
Near as I can tell @beaker was just using his controller as a digital thermometer with the bare thermocouple between the boiling flask and the mantle.
I just stuffed a digital thermometer probe in a similar location.
For $275 you get the mantle, boiling flask of your choice (I recommend the single neck), the head, the triple cow, and four receiving flasks.
You’ll need to come up with a cold trap, a gauge, a vacuum pump, a lab-stand & clamp(s), and a lab jack.
The robinair dual stage pictured was not ideal, but did stay under 140um for the run.
There is also an even smaller setup…without a mantle.
I think the boiling flask is only 50ml.
Maybe @Roguelab wants the itsy bitsy one?