[ARC5] The BC-221 low frequency tank circuit puzzle.

[hwhall at compuserve.com]

Ah! Of course! Thanks!
 

 Wayne

 

-----Original Message-----
From: Nick England <navy.radio at gmail.com>
To: Wayne Hall <hwhall at compuserve.com>
Cc: Richard Knoppow <1oldlens1 at ix.netcom.com>; ARC-5 <arc5 at mailman.qth.net>
Sent: Sun, Feb 14, 2016 2:56 pm
Subject: Re: [ARC5] The BC-221 low frequency tank circuit puzzle.




M = 1000 in Roman numerals. Mille in Latin.

M or m is still commonly used in commercial pricing for 1000 items. 
Bottles $350/M for example. CPM = cost per 1000 ad impressions.


K for 1000 is relatively recent usage I think.





Nick England K4NYW

www.navy-radio.com






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