Hi Clive,There was a little study performed not too long ago by Ed Phillips. Look up "FINAL REPORT Cu COIL vs Al COIL" in the archives for the info.
I think they are acceptable in the primary. There is a difference in Q and resistance (but it's not a much). Nothing wrong with Al primary's in my book.
Take care, Bart Clive Hansen wrote:
Quotaing Bart, "If I had to pay their prices in a US economy and cost of living situation, I would certainly consider Aluminum primaries."
Are aluminum primaries acceptable? Why are they not widely used? -Clive
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