UK Vintage Radio Repair and Restoration Discussion Forum - View Single Post

ionburn · 30th Jul 2019, 10:56 pm

I am not aware of software, but have not needed or looked. It is something which may be not too difficult to do by hand. You only really need the length of circle perimeter (or length of the scale if not full circle) then calculate a normal straight log scale to fit that length. Then transfer over. I can see it would be tedious but with the right tools, practical.

Hopefully someone will have done this and know the tricks (or better still - software).

One other option would be if someone were able to take an accurate photograph of such a scale from identical model.

30th Jul 2019, 10:56 pm	#2
ionburn Heptode Join Date: Dec 2014 Location: Lincoln, Lincolnshire, UK. Posts: 583	Re: Drawing circular log scales? I am not aware of software, but have not needed or looked. It is something which may be not too difficult to do by hand. You only really need the length of circle perimeter (or length of the scale if not full circle) then calculate a normal straight log scale to fit that length. Then transfer over. I can see it would be tedious but with the right tools, practical. Hopefully someone will have done this and know the tricks (or better still - software). One other option would be if someone were able to take an accurate photograph of such a scale from identical model.