[time-nuts] schematics of frequency counter

Li Ang lllaaa at gmail.com
Wed Dec 24 11:19:16 EST 2014


http://www.qsl.net/bi7lnq/freqcnt_bi7lnq_v4.pdf  this is my current board.
I'm not a hardware guy, feel free to correct my mistakes. :)


http://assets.fluke.com/manuals/6690____smeng0000.pdf schematic of cnt90
aka pm6690


Happy holidays


Li Ang


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