Tiny bubbles do not make me happy, Help.

Arrghh. This should have been a warranty item right out of the box. Could you consider it a mark of character, like Marilyn Monroe's beauty spot? Short of piercing the bubble with a needle or small drill bit, then filling it in with a material that has an index of refraction similar to glass (superglue or epoxy?), I'm out of ideas. Good luck.

I put a small piece of black electrical tape on the back of the glass, over the bubble, on my MR-67 tuner and can't tell it's there anymore. Or else you can order a new glass faceplate from Audio Classics for about $100.

But I should say, the bubble was in the black part of my faceplate! I don't know what your C22 looks like. If it's clear, why not a piece of regular clear cellophane tape?

You can buy a windshield "bullet" hole filler syringe device which pressurizes a glue into the bubble. Costs about $7 at auto supply stores and Wallmart.