I?m in the process of having my Marantz 2270 receiver restored and could use some help or advice on where I could find the inner knob (see picture) that is used for the Bass, Mid, or Treble switches. My other knobs for the Selector, Balance and Volume are there but not in great shape and I could use some of those too.
I inherited this received from my dad (original owner) and I want to restore it cosmetically to go along with the internal restoration/upgrade that is getting worked on right now. Any help would be greatly appreciated.
Thanks