help will be appreciated. I have quite an old Linde(German) Tig welding machine. Its only problem is that its HF unit ceased to work and since it is so old it is next to impossible to fix it. I would like to ask if somebody can tell if it is possible to replace it with another unit (any kind - not the original).
it gets input of about 70vac and it delivers out a spark to ignite the arc.