Mini Phono EQ project suggests an idea for manufacturing RIAA Phono Equalizer in miniature size by hand made.
Main circuit of RIAA Phono Equalizer for MM cartridge is based on the reference circuit on LME49721 data sheet.
Rail Splitter circuit is for positive/negative power supply, which provides more stable power than voltage divider by resistors.
5V Power supply is supposed since the maximum power voltage of LME49721 is 5.5V from V- to V+ is 5.5V.
Making use of pitch conversion PCB from 1.27mm to 2.54mm allows us to implement peripheral parts with SOP8 OP Amps in a small size factor.