[Boatanchors] Heath DX-100

[WA1KBQ at aol.com]

A solution of Sodium Bisulfate in warm water will put a shine on copper, 
nickel and cadmium plating. Sodium Bisulfate is commonly sold in pint size bottles 
for a couple of $ as "pH-down" where swimming pool supplies are sold. It 
doesn't take much and works after a couple of minutes, be sure to clean parts 
thoroughly afterwards and wear rubber gloves. The cleaning afterwards is when the 
bright lustre returns. This is a rather drastic measure, is messy and you have 
to be careful with what you are doing but is necessary sometimes with 
discolored tarnished parts that need to look good afterwards. 

Regards, Greg