I offer a custom fine tuning knob retrofit for CT100 and 21CT55 fine tuning knobs. If your fine tuning knob is broken and you would like to have your knob repaired by having the custom aluminum throat which have devised, attached to your knob, I can do that for you. You need to send me your broken knob and I will repair it using one of my custom machined aluminum throats.

The price is $42.50 plus $5.00 shipping. If you would like to have this service performed contact me through this email link and I will email you instructions on where to send payment and your broken knob.