I am sure the Technics engineers have provided an excellent power supply. Why worry about it?
SL-1200G Anyone Replace Arm and/or Power Supply?
The easy mods are..well easy and inexpensive...new mat..etc. A new arm board for the new 1200 series is available in SME and Rega versions. There is also a British external linear supply which, after removing 10,000 screws can be installed along with the new replacement internal board. No soldering..just lots of screws.
Anyone try one, or both mods and how involved was the modification and what were the sonic benefits? I suspect that few..if any..will respond..