[Amps] R. MEASURES PRAYERS ANSWERED

k7fm k7fm at teleport.com
Sat Jun 3 08:45:00 EDT 2006


Hi Peter:

I have found that carbon comp resistors which are new, but old stock of 
decades, are likely to read high by as much as 50%.  However, I have a box 
full of  older (body-end-dot) dogbone resistors and they seem much less 
likely to change value.

It would be interesting to see if the came thing happens to resistors owned 
by hams in the dry areas. Perhaps someday historians will use carbon comp 
resistors for dating equipment - like counting rings in a tree.

I suspect that, like wine, there are good and bad manufacturing years (and 
companies) for resistors and capacitors.

I know a fellow who restores old test equipment.  During restoration, he 
removes all of the "black-beauty" capacitors, which are almost 100% leaky. 
He had a bucket full of them when a friend came ina and told them they are 
selling on eBay to audiophools.  He now sells them on eBay - fully 
disclosing that they are leaky and removed from equipment.  Someone thinks 
they sound better.

73,  Colin  K7FM 



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