Hi Kilowat3 -
The TLC-1 knobs are secured with #4-40 hex-head set screws, and you will need a .050" hex driver to tighten them. The original set screws were steel but I have now replaced them with longer Stainless Steel screws that do a better job of staying tight.
Please contact me directly if you have further questions.
Best regards,
Steve McCormack
SMc Audio
The TLC-1 knobs are secured with #4-40 hex-head set screws, and you will need a .050" hex driver to tighten them. The original set screws were steel but I have now replaced them with longer Stainless Steel screws that do a better job of staying tight.
Please contact me directly if you have further questions.
Best regards,
Steve McCormack
SMc Audio