Summary

Zenith 7S633 Replacement Knobs

These replacement knobs were designed to fit the Zenith 7S633 (1942–43) table radio. The originals on my set had crumbled with age, so I modeled new ones to bring the radio back to its classic look.

The design matches the original style and dimensions so it blends in with the cabinet and dial face. Printed in PETG for durability, but PLA or ABS should also work fine.

Diameter: Modeled to original Zenith knob size

Finish: Can be left as-printed or sanded/painted for a vintage look

Great option for anyone restoring a Zenith 7S633 or similar models that used the same knob style.