@mijostyn,
Audio Magazine 1978-May, starting ~page 44 of 124 has a discussion with measured data for static charge on records. The article does say - "Incidentally, measurements with these instruments have shown that electrification from the direct friction between the diamond and vinyl is, oddly enough, negligible." You can download a copy of this magazine here: https://worldradiohistory.com/Archive-All-Audio/Archive-Audio/70s/Audio-1978-05.pdf. However, this does not diminish the success of using a conductive (as defined by ESD practices) brush to remove static charge from a record that can develop during play - this is a very common method used for ESD control as is continuous ionizing devices (harm to Buna-N rubber notwithstanding).
Also, for info, the pressure the stylus develops on a record is actually pretty complicated - RCA Engineer magazine 1966 Aug-Sept has an article DISC PHONOGRAPH RECORDS written by Dr. Max that shows the calculation. You can download a copy of this magazine here: https://worldradiohistory.com/ARCHIVE-RCA/RCA-Engineer/1966-08-09.pdf.
Audio Magazine 1978-May, starting ~page 44 of 124 has a discussion with measured data for static charge on records. The article does say - "Incidentally, measurements with these instruments have shown that electrification from the direct friction between the diamond and vinyl is, oddly enough, negligible." You can download a copy of this magazine here: https://worldradiohistory.com/Archive-All-Audio/Archive-Audio/70s/Audio-1978-05.pdf. However, this does not diminish the success of using a conductive (as defined by ESD practices) brush to remove static charge from a record that can develop during play - this is a very common method used for ESD control as is continuous ionizing devices (harm to Buna-N rubber notwithstanding).
Also, for info, the pressure the stylus develops on a record is actually pretty complicated - RCA Engineer magazine 1966 Aug-Sept has an article DISC PHONOGRAPH RECORDS written by Dr. Max that shows the calculation. You can download a copy of this magazine here: https://worldradiohistory.com/ARCHIVE-RCA/RCA-Engineer/1966-08-09.pdf.