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ajgriff · 7th Dec 2019, 1:03 pm

This is a bit of a guess based on the smaller Lyons Zenith Variacs but is there some kind of clip or collet at the bottom of the central shaft when viewed from underneath? On the smaller ones it's just a circlip with a diameter of about 3/4 inch. Once removed, the shaft (complete with rotor assembly and control knob) can be withdrawn. Makes the whole dimantling process much easier. The attached diagram shows the construction of the Lyons Zenith V-5 Duratek Series (2-2.5 Amp) which might help. The drawing on the right is a view of the base and shows the circlip mentioned above.

Alan

7th Dec 2019, 1:03 pm	#18
ajgriff Nonode Join Date: May 2004 Location: Halifax, West Yorkshire, UK. Posts: 2,587	Re: Damaged vintage variac This is a bit of a guess based on the smaller Lyons Zenith Variacs but is there some kind of clip or collet at the bottom of the central shaft when viewed from underneath? On the smaller ones it's just a circlip with a diameter of about 3/4 inch. Once removed, the shaft (complete with rotor assembly and control knob) can be withdrawn. Makes the whole dimantling process much easier. The attached diagram shows the construction of the Lyons Zenith V-5 Duratek Series (2-2.5 Amp) which might help. The drawing on the right is a view of the base and shows the circlip mentioned above. Alan Attached Thumbnails