[Amps] Silver plating

[David C. Hallam]

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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