Radio Coil Forms

These are coil forms designed to fit over [8-pin tube bases](https://www.tubesandmore.com/products/tube-base-8-pin-octal-black) (1.25" diameter) or [8-pin plugs](https://www.tubesandmore.com/products/plug-8-pin-black-plastic) as an alternative to using PVC pipe.

These are minimum-thickness forms with a nominal outside diameter of 36.7mm
The actual diameter of your form should be checked after printing.

These coil forms are suitable for winding the tank coils for [the modern tube theremin project](https://github.com/voretaq7/theremin).