This is the Technics SL-1200 Mk4 powered up after the addition of a Kabusa power system board. The original power transformer (the grey square) and the board beneath it are now disconnected, but I’ve left them in place in case a future purchaser might want to revert to the original power system for some bizarre reason!

This is the deck before I installed the Kabusa board. As it was a Japan-only model I needed a 100-240V offboard transformer to power it from the UK mains electricity supply.

After the installation of the Kabusa board. All that is needed is a 24VAC wallwart supply. I chose a linear one rather than SMPS to avoid the possibility of noise and spikes on the output.

And here is the newly-powered turntable rotating at 78rpm. I believe that although some other SL-1200s can operate at 78, the Mk4 is the only model with a dedicated button. This is of course hugely important!

Today I’ve put a #Kabusa PSU board in my #Technics #SL-1200 Mk4, meaning I now don’t need either the offboard Japan-UK voltage convertor and the onboard mains transformer. Power comes now from a 24VAC linear wallwart. Here’s the deck spinning at 78rpm - any SL-1200 worth its salt has a 78 button!