Claude Lyons / Zenith 8A Variac Refurbishment (Part 2)

Repair and refurbishment of an old 8A Claude Lyons / Zenith variable transformer.
Part 2 - Electrical testing, track cleaning, checking internal wiring.

[ronniepirtlejr]

Would a thin layer of Dielectric grease be good for something like that? The contact is on top, keeping it clean?
Probably wouldn't hurt to take some compressed air and blow out the coil outside. Get that carbon powder out of it!

[roblawrence]

Hi interesting videos I'm referbing one now . Do you know where I could get new brushes for it please. Kind regards

[paulekstorm-hughes]

256 volts? Isn't that way over the regulations? Isn't the UK the same as the rest of Europe at 230v  +-10v? The maximum therefore being 253v?

[millomweb]

Interesting to note you freely handling unearth/grounded metal marts with the power on.

[roblawrence]

Thank you very much for the heads up. All the best . Rob

[robertriley]

I have a Zenith Type 100-RM2b, (two outputs at 4 amps). I need two sets of brushes, can you tell me where you obtained yours, (or did you make / modify them) I am sure that there will be many viewers that would appreciate an answer?

[spaceysound]

One way to clean the tracks is to use a pencil eraser, works well, no chems required, at least worth a try first.

[benbaselet]

I might have opted just going for the pressure washer for this one.

[patelgautam]

How to design a variac ?like turns per volt and core area

[millomweb]

The brushes look 'new' to me. It's not an electric motor - so those brushes would outlast you !

[cameronmacfarlane]

Your spit swallowing is out of control.