Recently rereading the vintage 1967 article on measuring "pickups" (viewtopic.php?f=46&t=45930
It occurred to me that it should be possible to use the methods mentioned to calculate effective tip mass at the very least to a degree that would be useful for comparison between cartridges if not perhaps absolutely correct.
The formula provided for effective tip mass is:
Where F is the upper resonant frequency, M= effective tip mass and C=compliance
F can be measured (no problem there... although getting the right test record can be awkward!)
C on the other hand is more awkward - which version / measure of compliance is valid here !?
The article does discuss measuring compliance...
What is not clear is which measure of compliance would be relevant (and which units) to solve the above formula!
So for example the original V15V was claimed (based on Jean Hiraga period review) to have stylus mass of circa 0.1mg, and a Resonant frequency of 33kHz....
Not sure what units are required for that formula to work it does not seem to solve for that standard V15V (the values from the Jean Hiraga article may be wrong too...)
Is the method of measuring compliance provided in this article that different from the current "norms"?
Or am I missing something fundamental?
It would be interesting to be able to calculate a stylus mass....
bye for now