Hey everyone, new guy here starting up a box collection managed to score an M90-JW thats in not too bad condition but it's missing a couple knobs and the battery cover. the knobs missing are the little 'fine tune' knob under one of the tweeters and the main volume knob. is there anybody parting out an M90 atm or have any knobs kicking around? might be a silly thing to ask as i notice they are pretty scarce.

any help would be appreciated

thanks.