Cassette Torque Measurement

How to measure the motor torques (FWD, REV, FFW, FRW) of a cassette deck.
Title music is "The Britons by Kevin MacLeod and is CC0 (no attribution, copyright free) available from FreePD.com

[@young_of_the_mill9560]

Thanks great video! Do you know where I can get a torque meter cassette?

[@yellowspringsvintageaudio352]

I'm glad you enjoyed the video. Here is one that is similar to the one in the video. It is calibrated in units of gram-centimeters instead of X10^-4 Newton-meters. Most service manuals list torque specs in both units though. Here is the link on ebay: www.ebay.com/itm/124256006140?hash=item1cee3c2ffc:g:yBMAAOSwujhd~aTS&amdata=enc%3AAQAHAAAAsJKbtC90dOkuEPgGso9V%2Fx8gsTQQ1GhzFLJvxKazMv0g9YKbzFJVW85wEJ1IPDeSGbiilKJKU3oYSc36D3cPm4Yf67NbWVsvp5nRxog1rTMIoKPS8ApvTZ5n2F%2BhyLBxbu0DBRsYngHjYEr1hn5MbEePyOmv49sH2LXlzI9PLRNGj4yJsCDuNRZJksK%2BzcETCR3jHjUH8xgdhZOHe%2F7i7uakkY1KWapc7rzRSf8MSjNR%7Ctkp%3ABk9SR-7L3ZOFYQ