technics sp 15

That SP15 is a terrific turntable, it's specs beat many of the best TTs made today, scroll near the bottom of this list.

https://vintagetechnics.audio/turntables.php

It is simply a spinner, you need a separate tonearm, with a cartridge and the bottom of the tonearm will have concealed connections for a phono cable to go to a phono equalizer in a preamp.

If you like it's looks, you would need to find/buy a Technics base, buy a tonearm and cartridge.

here's one

a. in a technics base made for the SP10 and/or SP15 models

b. with a dust cover (came with the technics base)

c. separate tonearm with cartridge (chosen by former owner)

Did it come in a technics base?

dust cover?

hole for tonearm?

separate removable board in the tonearm hole?

various round tonearm mounting boards fit the hole, because various tonearms require cutouts of specific shapes.

...................................... none for sale now, they pop up from time to time, this one was sold, just to show you

A turntable does not have speaker connections. This is what you need!

https://www.crutchfield.com/S-TfIxumRFl2E/learn/how-to-connect-a-turntable-to-a-receiver.html