75 plus.
Great information thank you. I done my apprenticeship in a paper mill and we too had miles of machinery running at high speeds and feeds, I remember using hand held speed indicators to check repairs we made on the machinery but they were expressed in RPM. As you know FPM is more applicable to a machinist and I saw this tool for sale and just could not resist. I will take this to a watchmaker for repair and pay his price. Its worth it.
DICKEYBIRD. Great you like your purchase and probably a useful tool, but I am really more into the mechanical side, no offence but mechanics to me do not tell lies, electronics are quirky and I don’t trust them, and I feel there is no substitute for a well made piece of instrumentation tailor made for the task at hand. I thank you for your response.
Skip/ Paul. Great to know you are using a fifty year old piece of instrumentation and glad to know its functional for you. This too is my end goal.
Thank you all. Anthony.