Limited to $100 look for a used Creek OBH-8. They show up here and eBay regularly.
Now for $30-$40 you could go to Radio Shack and get the battery powered one they sell. Don't laugh; it is actually pretty good. Battery power gives it very low noise. Google the term LITTLE RAT PHONO PREAMP and you'll see it is popular with some budget mined audiophiles.
Now for $30-$40 you could go to Radio Shack and get the battery powered one they sell. Don't laugh; it is actually pretty good. Battery power gives it very low noise. Google the term LITTLE RAT PHONO PREAMP and you'll see it is popular with some budget mined audiophiles.