I have an old RMI 140 solid state amp with a broken pot (the shaft pulls out of the body). I am trying to find a replacement but the pot does not have typical marks such as "A100K". I tested the pot with a multimeter (dial set to 200k ohms) and got a reading of 101.1. The only markings on the pot are "CTS", "USA", "204-1040", and "1376927". Can anyone help identify the value of this pot? Thanks in advance for any help with this problem.