It's the cheap no-name brands that seem to have the rust problem, I suspect better quality ones might be OK.
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My aversion to this stuff stems from back when I used to manufacture stuff that had to use top quality first tier components as part of the contract.
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With the quantities of resistors I have here, my kids grandkids will probably have a lifetime supply (I still have some 5000 quantity reels left over from that time) ?
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Terry VK5TM