How do you like the drill stand ? Is there a deflection under load ?I bought a used, black, AEG SB2E-20 a decade ago and have used it extensively since then on a Maxion drill stand. The label says "Made in W.Germany", which dates it. Amazed what 850 watts can do to 8mm mild steel, it cuts swarf like far bigger pillar drills (which I do not have room for) and effortlessly produces perfect 10-20mm dia holes. I love that it has the speed adjustment on the top, which is perfect for drill stand applications - a design I haven't seen on any other hand held drill - and there's plenty of torque at the low RPMs required for larger tooling, thanks to a magnetic pick-up on the shaft providing feedback to the electronics. Sadly it has now developed a fault, which I'm hoping I'll be able to fix: it randomly jumps to full speed while running, which is absolutely terrifying when it happens, and of course renders it completely unusable. Popping the cover today I was surprised to see how advanced the speed control electronics are. Visual inspection reveals an overheated power resistor which I will replace, though I doubt that's the full story - would love to hear any suggestions on how to troubleshoot further!
Edit: Ok, yeah, it's not the (8k2) power resistor. I suspect it may be the U211B chip (a "Phase Control IC with Overload Limitation for Tacho Applications"), in which case I'm SOL; this part is long since obsolete and expensive if you can find one.
PS: speed adjustment is available from Metabo for example (BEV 1300-2, BE 850-2, BE 600/13-2...) or Bosch (GBM 13-2 RE)
