[time-nuts] Vintage Frequency Measurement

[Tom Van Baak]

Another nice example of "before there were frequency counters":

"Methods of using standard-frequency radio transmissions", 1934

    http://tf.nist.gov/general/pdf/2423.pdf

"Recent developments in precision time-keeping", 1934

    http://leapsecond.com/pend/pdf/1934-Tomlinson-Recent-Developments-Timekeeping.pdf
    via http://adsabs.harvard.edu/full/1934Obs....57..189T

/tvb