The product is call Cool-Amp, $30 for a 2 ounce jar. Electricians use
it on buss bars. You take a wet rag, rub it on, and rinse.
David
KC2JD/4
Roger wrote:
>
> Gary Hinson wrote:
>>> Does anyone here have any before and after comparisons of silver
>>> plating HF tank coils? It seems most of the commercial amateur amp
>>> makers do it but I have never seen any specific data. All comments
>>> appreciated.
>>>
>> Hi Bill.
>>
>> Check this page: http://www.vhfdx.net/discuss/silverplating.html.
>>
> Having done silver plating back when I worked for a living, I can vouch
> that the chemicals are nasty.
> I have forgotten the two specific chemicals, but IIRC they are solution
> of silver Cyanide and potassium Cyanide. All I remember for sure is the
> Cyanide part. <:-)) I worked in a locked room with fume hoods and
> chemical gear.
> Just immersing the Copper into the solution would give it a "flash
> plating" that looked very nice.
>
> I also plated coils made of 99.999 (5 nines) pure silver using a silver
> nitrate and nitric acid solution which put a rough coat on them. It was
> like a lot of tiny silver crystals. Of course working with acids and
> Cyanides in the same room made it more than a little hazardous for any
> one not familiar with the process or what happens if the two were mixed.
>
> One day we were having one of *those* inspections where every thing had
> to be neat, clean, and safe! On of the maintenance guys noticed every
> thing was still set up in that small lab and decided to "clean it up".
> He had to talk the plant protection guy into letting him in. He didn't
> know what was in the two pails under the hood so he just poured them
> together. He said they foamed up and smoked a bit so he just carried
> them outside to air out. I don't think he ever realized (even after I
> explained using lots of simple words for emphasis) how close he came to
> having his wife cash in his insurance.
>
> BTW there is a chemical mix that will flash plate by just wetting it and
> then rubbing it on the copper. It is hazardous, but nothing like the
> plating chemicals.
>
> 73
>
> Roger (K8RI)
>> The VHF guys say basically it's just for show: bare copper is as good.
>>
>> 73
>> Gary ZL2iFB
>>
>>
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