djk Posted November 6, 2013 Share Posted November 6, 2013 An alloy of 56% copper, 35% silver and 9% manganese proved suitable, and this alloy began to be coined into nickels from October 1942. In the hope of making them easy to sort out and withdraw after the war, the Mint struck all "war nickels" with a large mint mark appearing above Monticello. The mint mark P for Philadelphia was the first time that mint's mark had appeared on a US coin.[89] The prewar composition returned in 1946; all nickels struck since then have been in 75% copper and 25% nickel.[90] Quote Link to comment Share on other sites More sharing options...
Shakeydeal Posted November 6, 2013 Author Share Posted November 6, 2013 I guess this turned into a metallurgy thread? Shakey 1 Quote Link to comment Share on other sites More sharing options...
djk Posted November 6, 2013 Share Posted November 6, 2013 (edited) Steel leads on parts in high current audio paths sound bad. This also includes 'copperweld' leads, steel leads flashed with copper and then tinned (frequently used on capacitors and resistors). Massive brass connectors. Minimalist types seem to sound better, the best RCA plugs I ever heard were some very cheap Radio Shack types with virtually no metal in them, and plastic handles. Edited November 6, 2013 by djk 1 Quote Link to comment Share on other sites More sharing options...
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