VINTAGE HEATHKIT 6-PIECES GRAY AMPHENOL CONTROL KNOB LOT as pictured, they’re pulled, in good condition (cleaned, and all setscrews intact) pot insert shaft size= 1/4” (great for AMPEX, ALTEC, FAIRCHILD etc...). Note: The shown amplifier picture is using as reference only and this selling is final (NO RETURN OR REFUND) Please buy or bib accordingly. Thanks for looking.