UK Vintage Radio Repair and Restoration Discussion Forum - View Single Post

Vintage Engr · 10th Sep 2018, 5:19 pm

Selenium dioxide should do it, but you'll need to swab it on gently & evenly with cotton wool.

It's used for filling/ blackening engravings on brass & aluminium.
One trade name is "Aloxide".

David.

10th Sep 2018, 5:19 pm	#2
Vintage Engr Heptode Join Date: Jan 2008 Location: Shrewsbury, Shropshire, UK. Posts: 841	Re: Replacement candlestick receiver Selenium dioxide should do it, but you'll need to swab it on gently & evenly with cotton wool. It's used for filling/ blackening engravings on brass & aluminium. One trade name is "Aloxide". David.