Sturdy Turntable Stand

I use one of these: https://www.turntablelab.com/products/line-phono-turntable-station  Quite heavy and solid, has nice features specifically for a turntable stand (call it ergonomic), and won't break the bank.

Geoffk..  I like the (no longer available) isolation device you developed.  It appears, to me, that it would definitely tackle the many issues associated with undesirable vibrations.. of any kind.  I'm thinking it would have been quite expensive though.. You couldn't build that with left over scrap from your shop.  

Thanks for the comment. Yes, expensive to make. And tricky to build and difficult to ship. Three strikes, you’re out. But as we know now, mass-on-spring iso devices are excellent at reducing vibrations originating on the top plate, including the impact of acoustic waves, as well as seismic type vibrations originating from the floor.

You're welcome and I agree..  I own a few tables and right at the moment I'm setting up an Oracle Delphi..  Spring suspension system.  Tricky to do properly.  I purchased an older version originally owned by one of Oracles "set up" guys.  He's owned it since new and didn't mess around with modifications to it.  That's why I purchased it.  I like vintage equipment that hasn't been messed with but not TOO vintage.  I've been audio for many years and have many systems on the go.  Nothing extremely complex or ridiculously expensive.  I'm at home with "previously owned".

..sounds like a VPI product of years ago.....a concrete slab supported by springs in a wooden box.  I forgot what they called it.