Does anyone know of a source for washers/shims that will alter azimuth by 0.5 degrees?
I'm interested in Dr Feickert's software and have two tonearms with no built-in provision for azimuth adjustment. I understand I will need to do 5 (or 9) measurements in 0.5 degree steps, and it is apparent how washers can be used for this, but I'm not sure where I can obtain washers that are exactly the right height.
(I haven't done the math (trigonometry) to determine the required washer thickness to cause a 1/2 degree change based on the distance between cartridge mounting screws -- but, even if I do that calculation I don't have a tool to measure that height with the accuracy I need.)
I know that Dr Feickert's kit includes a spirit level, but that does not seem useful in my case as it is not the angle of the headshell that is being altered but, rather, the angle of the cartridge below the headshell.
Thank you!
I'm interested in Dr Feickert's software and have two tonearms with no built-in provision for azimuth adjustment. I understand I will need to do 5 (or 9) measurements in 0.5 degree steps, and it is apparent how washers can be used for this, but I'm not sure where I can obtain washers that are exactly the right height.
(I haven't done the math (trigonometry) to determine the required washer thickness to cause a 1/2 degree change based on the distance between cartridge mounting screws -- but, even if I do that calculation I don't have a tool to measure that height with the accuracy I need.)
I know that Dr Feickert's kit includes a spirit level, but that does not seem useful in my case as it is not the angle of the headshell that is being altered but, rather, the angle of the cartridge below the headshell.
Thank you!