Does anyone have a "spare" knob for an HQ-180. It is the common knob that goes on various controls. Thank you. David, W3ST Publisher of the Collins Journal Secretary to the Collins Radio Association To Join the CRA go to www.collinsra.com Nets: 3805 Khz, Monday/Wednesdays 8 PM EST and 14250 Khz Saturday, 12 Noon EST