For the occasion I built a phono preamplifier as well. Separate regulated power supply using a schematic from an old Philips laboratory supply. The RIAA-correction has a CF50 as first stage which amplifies just over 300 times. Correction network is part of the plate-load, as per design Eugene Kommisarov.
It plays beautifully and has a vintage look using almost all pre-WW2 tubes..
