Sansui 2000X Original Push Button Knob. Read Below. Tested. Parting Out 2000X.

Sansui Model 4000 Receiver INNER Base or Treble Knob. Tested. Parting Out 4000.

Sansui Model 4000 Receiver 2SB324 Transistor and Mount. Tested. Parting Out 4000

Marantz 2245 Original Push Button Knob Read More Below Tested. Parting Out 2245.

Sansui 4000 Receiver OUTER Bass or Treble Knob. Read Below. Tested.

Pioneer SX-9000 Round Push Button Knob. Tested. Read Below. Parting Out SX-9000.

Pioneer QX-8000A Push Button Knob. Read All Below Tested Parting Entire 8000A

Onkyo TX-2500 Push Button Knob. Read More Below. Parting Out Entire TX-2500.