Hey all. Electronics nerd here. I also buy at auctions and sell on eBay / Craigslist. Recently I bought a skid and a half of mostly new in box, out-of-production Steelcase Volley monitor arm kits. These monitor arms do not use gas pistons or springs, no upward force, NO MINIMUM WEIGHT. They stay at whatever height you move them to by a clever adjustable one-way friction mechanism.
Anyway, a lot of us have one of the sexy new Rigol DHO800/900 series oscilloscopes since (among other things) they're tiny and come with VESA mount capabilities, which is sweet. But the problem we have been running into is all these monitor arms have loaded upward tension and are designed with a higher minimum weight than the Rigol, since they are expecting TVs or computer monitors. Some people are locking down the arms with hardware mods, others are adding lead tire weights to get around this. I have a bunch of VESA mount arms that will just work without mods, and they look nice too (cast aluminium arms, built-in interior cable routing, brushed finish...).
Ebay link:
https://www.ebay.com/itm/256495160268I'm using one for my DHO914 and it works and looks great, see pictures. You will want to use 20mm countersunk M4 screws and 12mm M4 interior sized nylon spacers for airflow (or at least that's the solution I used to make sure I wasn't blocking any of the heatsink vent area with the VESA plate). Those are on Amazon in kits for super cheap.
That, or contact me on eBay before purchase and I'll thrown in a 4x set of each screws and spacers. Be aware that without contacting me, those extra screws and spacers are not included - I need to know to put them in.
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