Sansui
Sansui 3900Z Speaker Switch Part # 07257700
Cleaned with DeoxIT D5. Dual switches on PCB ..
$17.99 USD
Sansui 3900Z Tuning Knob Assembly Part # 07652100
Fits tuning knobs on 4900Z and 5900Z as well ..
$19.99 USD
Sansui 5000A Acessory Circuit Board F-1056 with knobs
Original Sansui 5000A Working PCB ..
$24.99 USD
Sansui 5000A Balance Control Pot Part # 101021
Pot also fits model 5000 and probably others ..
$24.99 USD
Sansui 5000A Bass Tone Control Pot Part # 102004
Alps dual 100K pot for bass, treble control. Will also fit model 5000 ..
$19.99 USD
Sansui 5000A High Low Filter Circuit Board Part # F-1051 with knobs
Original Sansui 5000A Working Circuit Board ..
$14.99 USD