Thanks to all of you for your help. I will follow up on all your suggestions.
pop and click filters
Does anyone know anything about pop and click filters to minimize surface noise on LPs during conversion to tape (cassette)? I know there are sophisticated software/hardware products on the market now that do this and they may well be the only thing that works but I have heard there were once black boxes that minimized noise without losing too much fidelity. Does anyone know of such products and who made them and where can I find one? Thanks