Replacement for loricraft power supply

I´ll try to explain in my poor technical English (poorer than my English actually). It has two parts: an output voltage stabiliser & a frequency controller. If it´s not well explained, please let me know and I´ll try to describe it.

I bought in ebay some months ago an old Loricraft Power supply for abuot 500 $. It was so old that when I asked Loricraft about it, they could hardly remember wether they had made it or not (finally they said they had). It works perfectly, makes his job. But when I opened it I realised that it is just a power satbiliser, maybe with good components but nothing else. And that is the question, the Garrard 301 works well directly plugged in, the question is that owed to the age of all them, and the pass of the years, some are not very stable, but in my humild oppinion they need nothing else than a power stabiliser.