As an example -- let's evaluate the Dual 1229:
Look for high quality materials and very good mechanical finish.
--> yes for the motor and the platter
Look for absence of plastic parts or parts that could resonate too much.
--> yes save for the headshell and the top plate
Look for a platter of at least 2.0Kg weight
--> yes, 3.2 kilogram
Look for a nice main bearing that is absent of any play (try rocking the bearing)
--> (depends on the condition)
Look for a TT mounted on a plinth that is massive and free from resonances
--> NO (but you can mount them on better DIY plinths)
Look for a tonearm that allows all adjustments needed:
- VTF
--> yes
- antiskating force
--> yes
- cartridge offset adjustment
--> yes
- cartridge vertical adjustment
--> no
bonus points if it allows for lateral balance adjustment
--> yes
Look for a tonearm whose bearings have no play
--> yes, usually
Don't reject idler wheel or direct drive turntables
--> idler wheel
For idler wheel turntables, the bigger the idler wheel, the better the TT
--> it is rather big
In general, look for a motor that does not look smaller than your fist
--> it is big!
Final result: PASSED
Let's evaluate a Thorens TD145MKII, for example
Look for high quality materials and very good mechanical finish.
--> yes for the platter and tonearm
Look for absence of plastic parts or parts that could resonate too much.
--> yes except for the suspension mechanisms (but there are infinite amount of modifications possible for this model)
Look for a platter of at least 2.0Kg weight
--> yes, heavier than that
Look for a nice main bearing that is absent of any play (try rocking the bearing)
--> yes, excellent main bearing
Look for a TT mounted on a plinth that is massive and free from resonances
--> no, but can be mounted on a custom plinth
Look for a tonearm that allows all adjustments needed:
- VTF
--> yes
- antiskating force
--> yes
- cartridge offset adjustment
--> yes
- cartridge vertical adjustment
--> I think so (can't remember

)
bonus points if it allows for lateral balance adjustment
--> no
Look for a tonearm whose bearings have no play
--> they can be adjusted in this model
For belt drive turntables, look for ones which allow belt tension adjustment
--> no
For belt drive turntables, prefer AC motors rather than DC motors
--> yes, AC motor
In general, look for a motor that does not look smaller than your fist
--> tiny motor
Final result: PASSED
Let's evaluate the Technics SL-BD3:
Look for high quality materials and very good mechanical finish.
--> not so much
Look for absence of plastic parts or parts that could resonate too much.
--> plastic parts galore
Look for a platter of at least 2.0Kg weight
--> about 1.5 kg
Look for a nice main bearing that is absent of any play (try rocking the bearing)
--> (depends on the condition)
Look for a TT mounted on a plinth that is massive and free from resonances
--> no, and you can't mount them on a better plinth
Look for a tonearm that allows all adjustments needed:
- VTF
--> no, unless you're a technician
- antiskating force
--> no
- cartridge offset adjustment
--> no
- cartridge vertical adjustment
--> no
bonus points if it allows for lateral balance adjustment
--> no
Look for a tonearm whose bearings have no play
--> yes, usually ok
For belt drive turntables, look for ones which allow belt tension adjustment
--> no
For belt drive turntables, prefer AC motors rather than DC motors
--> DC motor
In general, look for a motor that does not look smaller than your fist
--> tiny motor
Final result: REJECTED