Seems there have been quite a few variants with different PS. This suggests maybe you have a "phono box original" and need to 16v 500ma wall wart?
https://www.henleydesigns.co.uk/Turntable-Power-Supplies-p602
@ChasnotRobert started
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Seems there have been quite a few variants with different PS. This suggests maybe you have a "phono box original" and need to 16v 500ma wall wart?
https://www.henleydesigns.co.uk/Turntable-Power-Supplies-p602