« Reply #10 on: Sun, 01 November 2020, 07:47:10 »
The crystal chips were known long ago but I have never seen one.
Several years ago, Mandolin had one or more Model Ms that had them and put them up for sale at a high price. Naturally, he was flamed mercilessly because the hobby was far more likely to rain down wrath on people charging high prices back then than they are today.
Because of the brou-ha-ha, those crystals became known thereafter as "Mandolin crystals".

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“No political truth is of greater intrinsic value, or is stamped with the authority of more enlightened patrons of liberty: The accumulation of all powers, legislative, executive, and judiciary, in the same hands .… may justly be pronounced the very definition of tyranny.” —James Madison, Federalist 47
“All the powers of government, legislative, executive, and judiciary, result to the legislative body. The concentrating of these in the same hands, is precisely the definition of despotic government. An ELECTIVE DESPOTISM was not the government we fought for; but one .... in which the powers of government should be so divided and balanced among several bodies of magistracy, as that no one could transcend their legal limits, without being effectually checked and restrained by the others.” — Thomas Jefferson, commentary on Federalist 48