For sale is a NEW, Lot of 5 Clarostat 10K Potentiometers RV4LAYSA103A. 10K ohm-S. 53C2-10K-S. I believe these are in good working condition. However, I have not tested them, so I'm not 100% sure. If you receive this item and you don't like it for any reason, you are welcome to return it. You would just pay ALL shipping. Thanks.