Continuous power supply

That depends on the turntable and its wall wart. maybe/probably. 

It also depends on the amount of hash and junk aka noise that the wall wart dumps back into your electrical system… 

you are likely to get user experience if you share the TT model including the smps and w luck finding another user who upgraded to a linear power supply…

Dr. Feikert Blackbird TT and an Allnic A2000 power amp. The wall wart is from Dr. Feikert. The candidate linear power supply is from Dr. Feikert