low a voltate output so you cannot see the waves
Microphone Connector Mono mini plug / Coupler / RCA Phono Plug / Phono Pre Amplifier input A / RCA Phono plug 2 output wired to RCA plug into BNC Adaptor to phono plug RCA.
Phono preamplifier
Microphone Audio Connection Kit for Oscilloscope – MAS 6053