I tried a little experiment this evening based on suggestions here and the Asylum. I got two Y connectors at Radio Shack with reversed male and female RCA connectors and used them to blend down the stereo outputs to mono and then in to the phono pre ins. This produced a clear 50+% reduction in the noise. I had read that the noise is out of phase between the channels and some will cancel out. The level is now quite low and easily makes the record quite enjoyable. I think, however, that a good mono cartridge may be in my future.
BTW 4yanx, the record is the plrp 8203 purple label (also identified as New Jazz. This is listed as 1958 issue, the same year as the more coveted (but more expensive) Yellow Label. Goldmine shows a number of NJLP 8203 for these but my record has prlp 8203 on the label. The Prestige 24032 was supposedly released in the 70's.
BTW 4yanx, the record is the plrp 8203 purple label (also identified as New Jazz. This is listed as 1958 issue, the same year as the more coveted (but more expensive) Yellow Label. Goldmine shows a number of NJLP 8203 for these but my record has prlp 8203 on the label. The Prestige 24032 was supposedly released in the 70's.